Aweke, Anteneh, and G. Diriba-Shiferaw. “Growth, Yield and Economic Advantage of Onion (Allium Cepa L.) Varieties in Response to NPSB Fertilizer and Planting Pattern”. International Journal of Horticulture, Agriculture and Food Science, vol. 8, no. 01, Jan. 2024, https://journal-repository.com/index.php/ijhaf/article/view/6995.