Kāp sō̜n lēk
By: Hungʻalun Dǣnvilai
Edition: Phim khang thī 1.
Publisher: Vannasin
Published: 2011
Place of publication: Vīangchan
Language: lao
Number of pages: 88
Description: Study and teaching mathematics for elementary education in Laos.
Notes: In Lao.