N. Setyowati, N. Hardianto, W. Widodo, and Z. Muktamar, “Leek (Allium fistulosum, L.) Growth and Yield as Affected by Cow Manure and Guava Waste Liquid Organic Fertilizer”, Agro. Bali. Agric. J., vol. 4, no. 3, pp. 305–313, Nov. 2021.