BOSHLANG’ICH SINF O’QUVCHILARI UCHUN STEAM YONDASHUVINING NAZARIY ASOSLARINI TEST TUZISH AMALIYOTI BILAN BOG’LASH. Journal of Universal Science Research, [S. l.], v. 4, n. 2, p. 249–253, 2026. Disponível em: http://universalpublishings.com/index.php/jusr/article/view/17038. Acesso em: 18 may. 2026.