Hopkinson, Sampson, and Megan Harris. “Effect of PH on Hydroponically Grown Bush Beans (phaseolus Vulgaris)”. International Journal of Environment, Agriculture and Biotechnology 4, no. 1 (October 10, 2019). Accessed November 21, 2024. https://journal-repository.com/index.php/ijeab/article/view/776.