TIMSS XALQARO BAHOLSH DASTURI O’QUVCHILARNING O’ZLASHTIRISH SAMARADORLIGINI OSHIRISHDAGI O’RNI. PSSIR [Internet]. 2025 Feb. 24 [cited 2026 Jun. 16];2(2):170-3. Available from: https://universalconference.us/index.php/pssir/article/view/3877