Malto GAO, Dalida CS, Lagunzad CGB. Flipped Classroom Approach in Teaching Biology: Assessing Students’ Academic Achievement and Attitude Towards Biology. KSS [Internet]. 2018Jun.4 [cited 2024Apr.27];3(6):540–554. Available from: https://knepublishing.com/index.php/KnE-Social/article/view/2403