Dampak Teknologi Pengendalian Hama Terpadu Terhadap Permintaan Pestisida Pada Tanaman Padi Di Yogyakarta = Impact of Integrated Pest Management Technology on Pesticide Demand of Rice in Yogyakarta - Perpustakaan UGM, i-lib ([Yogyakarta] : Universitas Gadjah Mada, 2002)