Nurjannah, H. ., L. Robiartini, and S. Susilawati. “Chili Pepper Cultivation Using Several Spacings Intercropped With Immature Oil Palm”. Jurnal Lahan Suboptimal : Journal of Suboptimal Lands, vol. 10, no. 1, Apr. 2021, pp. 27-36, doi:10.36706/JLSO.10.1.2021.498.