Kareem, Isiaka, et al. “Effect of Salinity Stress on Growth, Yield and Nutritional Qualities of Two Okra Varieties”. Bulgarian Journal of Soil Science, Agrochemistry and Ecology, vol. 54, no. 3, Sept. 2020, pp. 52-63, https://agriacad.eu/ojs/index.php/bjssae/article/view/1752.