Judul: Pelabelan Super Edge Magic Graceful pada Graf Petersen 𝑃��(𝑛��, 1) dan 𝑃�� (𝑛��, 𝑛��−1 2 ).
Abstrak: Pelabelan edge magic graceful pada suatu graf dengan banyaknya simpul ������ dan banyaknya sisi ������ adalah fungsi bijektif dari himpunan simpul digabung himpunan sisi yang dipasangkan ke himpunan bilangan bulat terurut dimulai dari 1 sampai ������ + ������, sedemikian sehingga untuk semua sisi, nilai mutlak dari penjumlahan label verteks yang saling adjacent dikurangi dengan label dari sisi yang incident dengan verteks tersebut akan sama dengan ������, ������ adalah konstanta magic. Pelabelan edge magic graceful yang memasangkan himpunan simpul ke himpunan bilangan bulat terurut {1,2, … , ������} disebut pelabelan super. Dalam karya ilmiah ini, ditunjukkan bahwa graf Petersen ������(������, 1) dan ������ (������, ������−1 2 ) keduanya memiliki pelabelan super edge magic graceful.
Keyword: graf Petersen, pelabelan super edge magic graceful

Judul: Super (a,d) edge antimagic total labeling pada graf petersen
Abstrak: Karya ilmiah ini membuktikan teorema-teorema untuk memperoleh super (a,d)-edge-antimagic total labeling pada graf petersen. Pada pelabelan, didefinisikan jumlah label sisi (edge) dan label dua simpul (vertex) yang menempel pada sisi (edge) disebut sebagai bobot sisi (edge-weights). Suatu graf yang memiliki bobot sisi yang berbeda untuk setiap sisi maka graf ini disebut graf dengan antimagic total labeling. Jika semua sisi mempunyai bobot sisi yang berbeda dan himpunan bobot sisi dari semua sisi membentuk barisan aritmatika dengan suku awal a dan beda (selisih) d maka pelabelan tersebut disebut (a,d)-edge-antimagic total labeling. Kemudian, (a,d)-edge-antimagic total labeling disebut super (a,d)-edge-antimagic total labeling jika f(v(g)) = {1, 2, …, v} dan f(e(g)) = {v+1, v+2, …, v+e}. Terdapat dua pembuktian teorema yang dibahas dalam karya ilmiah ini. Teorema pertama membuktikan bahwa graf petersen p(n,m) dengan n ≥ 3 bilangan bulat ganjil dan m = 1, memiliki super (5𝑛+52,2)-edge-antimagic total labeling. Teorema kedua membuktikan graf petersen p(n,m) dengan n ≥ 3, 1 ≤ m ˂ 𝑛2 , mempunyai sebuah super (4𝑛+2,1)-edge-antimagic total labeling
Keyword: edge-antimagic total labeling, antimagic total labeling, graf petersen, super (a,d)

Judul: Biology and ecology of the buffalo fly, haematobia exigua de meijere (diptera:muscidae)
Abstrak: The life history of the buffalo fly was observed at room temperature of 27°-29.5°C and at a relative humidity of 48-68 percent. The eggs hatched after 17-22 hours, with an average of 18 hours. First instar larvae measured 1.25 + 0.16 mm long and 0.27 + 0.037 mm wide. reach the second larval stage. It took 6-12 hours to the second instar larvae measured 2.676 +0.187 mm long and 0.353 +0.028 mm wide. The second instar took about 12-24 hours to reach the third larval stage. The third instar measured 6.833 + 0.189 mm long and 0.919 + 0.051 mm wide. It took about 2-3 days for the third instar to become pupae. Duration of the pupal stage was about 5-7 days before the adults emerged. Under laboratory condition, the buffalo fly completed its life cycle in 9.5 to 10.5 days, whereas under field condition it took 9-14 days with an average of 10.5 days. The growth ratio which was based on the measurements of the cephalo-pharyngeal skeleton of each instar was 1.797. The preoviposition period was 8-12 days and mating usually occurred on the 6th or 7th day. The longevity of the male was 29 days, whereas it was 32 days in the female. The range of egg production under laboratory condition was between 20-139 per female fly. The belly and hind legs of the carabao were the most preferred habitat either during cloudy and cool dry or shiny and warm day. When the weather was clear and the carabao was in the shade, the flies tended to be more distributed particularly on the shoulder, dewlap, back and horns. The carabaos had relatively fewer Musca sp. and Stomoxys calcitrans than cattle; never the less carabaos had a higher infestation of buffalo fly than cattle. Oviposition occured either during the day or night but the buffalo flies were more active during the night than in the day time. The effect of various lengths of exposure time of manure in relation to the oviposition was profound. observed, the maximum number of the buffalo flies was occurred when the dung was exposed for 30 minutes. With increasing time of exposure the number and variety of insects also increase. It was evident that Sepsidae and psychodidae were the most dominant insects emerging from the dung. The number of buffalo flies also increased with increasing
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