Kittiwongsa , Nawapol, Kittima Panprueksa, Somsiri Singlop, and Chade Sirisawat. 2020. “Effects of 7E Learning Cycle Model With the STAD Cooperative Learning Technique towards Learning Achievement and Attitude towards Biology of 11th-Grade Students”. Journal of Education Studies 48 (2). Bangkok, Thailand:111-28. https://so02.tci-thaijo.org/index.php/EDUCU/article/view/243187.