Fikranti, Annisa Anjung, et al. “Response of Cayenne Pepper and Red Pepper Plants to The Concentration of Orrin Liquid Fertilizer on Entisol Soil”. Jurnal Biologi Tropis, vol. 24, no. 4, Oct. 2024, pp. 64-71, doi:10.29303/jbt.v24i4.6482.