Sajaad Abdulmahdy Jasem Asmeel Alwaily R, Ali Salman Mansour R. Positive thinking and its impact on perceived self-efficacy among middle school students: التفكير الإيجابي وأثره في الكفاء الذاتية المدركة. lark [Internet]. 2022 Jun. 30 [cited 2025 Nov. 1];14(4). Available from: https://lark.uowasit.edu.iq/index.php/lark/article/view/2593