S. Nabila and M. Idris, “The Effect of Liquid Organic Fertilizer Derived from Goat Manure and Banana Peel on the Growth of Pakcoy (Brassica rapa L.) Cultivated Using a Hydroponic System”, Bioscientist j. ilm. bosbiol., vol. 14, no. 1, pp. 51–61, Feb. 2026.