Garoma , W. “HPLC Method Optimization and Validation for Determination of Lycopene in Tomato (Lycopersicon Esculentum, Mill.) Fruits”. Science, Technology and Arts Research Journal, vol. 1, no. 4, Dec. 2012, pp. 14-26, https://journals.wgu.edu.et/index.php/star/article/view/56.