Panduan teknis pelaksanaan pendampingan program SL-PTT Sekolah Lapang Pengelolaan Tanaman Terpadu di Jawa Tengah Penyusun, Ekaningtyas Kushartanti...[ et al.].-- text Ungaran BPTP 2010 Ind INTEGRATED PLANT PRODUCTION SCHOOL FARMS FARMERS PARTICIPATION EXTENSION ACTIVITIES