Pradana, Andy, and Al Machfudz WDP. “Application of Potassium Fertilizer and Chicken Coop Fertilizer Against Growth and Production of Shallots (Allium Ascalanicum L.): Aplikasi Pupuk Kalium Dan Pupuk Kandang Ayam Terhadap Pertumbuhan Dan Produksi Bawang Merah ”. Nabatia 9, no. 1 (June 15, 2021). Accessed April 19, 2025. https://nabatia.umsida.ac.id/index.php/nabatia/article/view/1454.