Nurhaliza, Nurhaliza, 		Rosnita, Rosnita, AND 		Dewi, Novia.
" PERAN PENYULUH DALAM PENERAPAN INDONESIAN SUSTAINABLE PALM OIL (ISPO) PADA PETANI KELAPA SAWIT SWADAYA DI KABUPATEN KAMPAR" <em>JSEP (Journal of Social and Agricultural Economics)</em> [Online], Volume 14 Number 3 (30 November 2021)