G’affarov Qobiljon Turdiyevich. “BOSHLANG’ICH SINFLARDA ARIFMETIK AMALLAR BAJARISH METODIKASINING UMUMIY MASALALARI”. Ustozlar Uchun, vol. 43, no. 3, Apr. 2023, pp. 239-43, http://pedagoglar.uz/index.php/01/article/view/4030.