Tahir, Ikbal Muhammed Gharib, Sargul Ahmad Khudur, and Arol Mohsen Anwar. 2019. “Effect of Indoleacetic Acid and Zinc Sulphate Application on Growth and Some Physiological Parameters of Cowpea (Vigna Sinensis Savi) Plants”. Kurdistan Journal of Applied Research 4 (1): 15-19. https://doi.org/10.24017/science.2019.1.3.