Suthutvoravut, Somsak, and Ourawan Kamyarat. “Spermicidal Effects of Lemon Juice and Juices from Other Natural Products”. Agriculture and Natural Resources 50, no. 2 (April 30, 2016): 133–138. Accessed May 5, 2024. https://li01.tci-thaijo.org/index.php/anres/article/view/243896.