بركات هلا, and اسكيف سيمون. “Determination of Sildenafil in Herbal Aphrodisiac Products Available in Local Market by TLC and HPLC”. Latakia University Journal -Medical Sciences Series 43, no. 3 (July 6, 2021). Accessed July 29, 2025. https://journal.latakia-univ.edu.sy/index.php/hlthscnc/article/view/10720.