N'GUESSAN, Kouamé Antoine, et al. “Effect of Cowpea Seeding Density on Growth Parameters and Grain Yield of Maize in a Real Crop Situation in Northern Côte d’Ivoire”. International Journal of Environment, Agriculture and Biotechnology, vol. 4, no. 4, Oct. 2019, https://journal-repository.com/index.php/ijeab/article/view/315.