Suprijono, E., A. Jumaidi, Alnopri, N. Setyowati, and Z. Muktamar. “Effect of Swiftlet (Aerodramus Fuciphagus) Manure on Growth and Yield of Shallots in Ultisols”. Journal for the Agriculture, Biotechnology and Education, vol. 4, no. 3, Dec. 2024, pp. 51-58, https://jabedu.com/index.php/jabedu/article/view/34.