Sistema za povishavane kvalifikat͡s︡ii͡a︡ta na uchitelite i rŭkovodnite kadri na narodnata prosveta
By: [redaktor L. Todorov].
Contributors: Todorov, L.
Publisher: Okrŭzhen kom-t na Sŭi͡u︡za na bŭlgarskite uchiteli
Published: 1982
Place of publication: Blagoevgrad
Language: bul
Number of pages: 21