“Determination of Optimum Composition of Fermentation Medium for Citric Acid Production from Watermelon Rinds using Response Surface Methodology: https://doi.org/10.26538/tjnpr/v1i1.3” (2017) Tropical Journal of Natural Product Research, 1(1), pp. 12–16. Available at: https://tjnpr.org/index.php/home/article/view/3 (Accessed: 12 January 2026).