Vŭtreshnopredmetnii͡a︡t sintez v srednoto uchilishte
By: Khristo Aleksandrov Santulov.
Publisher: IPKU
Published: 1987
Place of publication: Stara Zagora
Language: bul
Number of pages: 87
Notes: Includes bibliographical references (p. 85-86).
At head of title: Plovdivski universitet "Paisiĭ Khilendarski." Institut za povishavane kvalifikat͡s︡ii͡a︡ta na uchitelite "Anastasii͡a︡ Tosheva"--Stara Zagora.