BOSHLANG’ICH SINF O’QUVCHILARI UCHUN STEAM YONDASHUVINING NAZARIY ASOSLARINI TEST TUZISH AMALIYOTI BILAN BOG’LASH. JUSR [Internet]. 2026 Mar. 7 [cited 2026 May 18];4(2):249-53. Available from: http://universalpublishings.com/index.php/jusr/article/view/17038