Tarigan, N., T. E. Wahyono, G. Perkasa, P. Maris, M. Rizal, and A. Kardinan. “An Overview of Black Pepper: Cultivation and Challenges ”. JURNAL ILMIAH AGRINECA, Vol. 23, no. 2, Aug. 2023, pp. 157-71, doi:10.36728/afp.v23i2.2636.