SiregarA. Z., SukeksiL., JumirahJ., and TanjungM. “Management of Pests and Coconut (Cocos Nucifera) Products in Northen Sumatra”. Jurnal Ilmu Pertanian Indonesia, Vol. 30, no. 2, Mar. 2025, pp. 305-11, doi:10.18343/jipi.30.2.305.