Sibel CENGİZHAN. THE EFFECT OF TEAM-GAME-TOURNAMENT TECHNIQUE ON ACADEMIC ACHIEVEMENT AND LONG-TERM RETENTION OF STUDENTS IN TEACHING MATHEMATICS AND STUDENTS’ OPINIONS. IJOESS [Internet]. 2017 Jun. 1 [cited 2025 May 17];8(27):588-60. Available from: https://rrpubs.com/index.php/ijoess/article/view/909