Laia, Seferman, Sitorus, Binner, AND Manurung, Agnes. " PENGARUH PEMBERIAN PUPUK KASCING DAN PUPUK NPK TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq) DI PRE-NURSERY" JURNAL AGROTEKDA [Online], Volume 5 Number 1 (31 March 2021)