Opit za sŭzdavane na optimalna sistema za proverka, ot͡s︡enka i otchitane povedenieto na uchenit͡s︡ite
By: Simeon Donev.
Publisher: Ministerstvo na nar. prosveta, Napravlenie "Vŭzpitatelna rabota"
Published: 1978
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 60