Usarov U.T., Imamnazarov D.H., Kuvandikov E.O., and Shaminova S.K. “ON THE IMPLEMENTATION OF THE PROBLEM LEARNING METHODOLOGY BASED ON A SYNERGY APPROACH”. Journal of Academic Research and Trends in Educational Sciences, vol. 1, no. 1, Dec. 2021, pp. 135-42, http://ijournal.uz/index.php/jartes/article/view/22.