Gadissa, Bayeta, Amare Biftu, and Ayalew Sida. “Pre-Extension Demonstration of Improved Black Cumin Varieties in Bale Zone, Southeastern Oromia, Ethiopia”. Scientific Journal of Crop Science 9, no. 1 (January 20, 2020): 393-396. Accessed July 22, 2024. http://sjournals.com/index.php/sjcs/article/view/476.