ROYANI, W.; PURNOMO, S.; RAHMI, H. Coconut Water Fermentation Response (Cocos nucifera L.) Against Growth Of Curly Lettuce Plants (Lactuca sativa L. var. Grand rapids F1). Jurnal Ilmiah Wahana Pendidikan, v. 7, n. 3, p. 218-224, 30 jun. 2021.