OKWUOWULU, P A. “Ginger (Zingiber Officinale Rosc.) in South Eastern Nigeria. II. The Field Response of the Uncoated Ginger Yatsun-Biri for Rapid Seed Ginger Production”. Journal of Spices and Aromatic Crops 3, no. 1 (June 22, 1994): 01–05. Accessed September 23, 2025. https://www.updatepublishing.com/journal/index.php/josac/article/view/4453.