Cobbinah A. Comparative effects of critical thinking and peer-assessment skills training on Ghanaian senior high school students’ achievement in mathematics: Comparative effects of critical thinking and peer-assessment skills training on Ghanaian senior high school students’ achievement in mathematics. gje [Internet]. 2017 Dec. 1 [cited 2024 May 16];4:77-88. Available from: https://journal.ucc.edu.gh/index.php/gje/article/view/496