na INLIS000000000001858 ind 0010-0923000225 Rencana Penelitian Tingkat Peneliti Kegiatan Penelitian 1990/91 Sumber Dana APBN Ir. Z.A. Simanullang, MS. Sukamandi : Balai Penelitian Tanaman Pangan Sukamandi, 1989 160 hlm. 2,1 cm - 633.001.1 BAL r C - Education, extension, and advisory work/Pendidikan, penyuluhan pertanian, dan dokumentasi MFN2127