Panas Tumkiratiwong, and Kittiya Lerkchundhakriat. 2011. “Effect of a Pyrimethamine-Sulfanilamide Combination on Induced Temporal Infertility in Male Wistar Rats”. Agriculture and Natural Resources 45 (1). Bangkok, Thailand:59-69. https://li01.tci-thaijo.org/index.php/anres/article/view/245133.