Prabowo, T. (1978). The educational effects on farmers of the pilot extension program on direct seeding of rainfed rice in Bulacan province, Philippines [microform]. Photoduplication Service. University of the Philippines Library.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Prabowo, Tjitropranoto. The Educational Effects on Farmers of the Pilot Extension Program on Direct Seeding of Rainfed Rice in Bulacan Province, Philippines [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1978.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Prabowo, Tjitropranoto. The Educational Effects on Farmers of the Pilot Extension Program on Direct Seeding of Rainfed Rice in Bulacan Province, Philippines [microform]. Photoduplication Service. University of the Philippines Library, 1978.