Saidah, Faza Yasmin, Heni Purnamawati, and Iskandar Lubis. “Evaluation of Source and Sink Capacity of New Cowpea Varieties”. Journal of Tropical Crop Science 10, no. 01 (January 25, 2023): 38–45. Accessed July 10, 2026. https://www.j-tropical-crops.com/index.php/agro/article/view/511.