Ospanov Y, Kadirbayeva R, Amirbekuly A, Alimkulova B, Оspanova N. Technology of forming the competence of plausible reasoning of mathematics students by solving open problems. WJET [Internet]. 2022 Nov. 28 [cited 2024 Jul. 22];14(6):1765-78. Available from: https://un-pub.eu/ojs/index.php/wjet/article/view/8325