Elida, Nita, AND 		Saragih, Wilmar.
" RESPON PETANI TERHADAP PENYULUHAN PERTANIAN DI KECAMATAN SIBIRU-BIRU KABUPATEN DELI SERDANG" <em>Jurnal Agribizda</em> [Online], Volume 2 Number 2 (19 October 2018)