BOSHLANG’ICH SINF O’QUVCHILARI UCHUN STEAM YONDASHUVINING NAZARIY ASOSLARINI TEST TUZISH AMALIYOTI BILAN BOG’LASH. JUSR 2026, 4 (2), 249-253. https://doi.org/10.66301/jusr.v4i2.17038.