Boymirov Sherzod Tuxtaevich, Gayibnazarov Rozimurod Bakhtiyorovich, Axmedova Manzura Gulomjonovna, Berdikulova Shakhsanam Umaralievna, Saparova Gulmira Bakhtiyarovna. Principles of Selection of Materials on the Problem Method of Teaching Physics in Secondary Schools. Texa. Jour. of Mutl. Stud. [Internet]. 2022 Apr. 22 [cited 2024 Nov. 13];7:283-8. Available from: https://zienjournals.com/index.php/tjm/article/view/1349