Sahabudin, R. S., M. Noor Ahmad, H. Sirajinisa, and A. Temumeni. “Plant Flavonoids As Inhibitors of Calcium Oxalate Urolithiasis”. Malaysian Journal of Science, vol. 18, no. 1, Apr. 1999, pp. 13-15, https://samudera.um.edu.my/index.php/MJS/article/view/9373.