Dushabaev Olimjon Nazarovich , urdibaev Dilshod Khamidovich Mirmukhamedov Juman Xazratkulovich , Zokirov Abdunazar Abduraimovich. “Improvement Of Teachıng Geometry Based On Pedagogıcal-Synergetıcal Prıncıples”. International Journal of Advanced Science and Technology, Vol. 29, no. 08, June 2020, pp. 3360-7, https://sersc.org/journals/index.php/IJAST/article/view/25488.