Qilichova, M. “MAKTABGACHA TA’LIMDA ELEMENTAR MATEMATIK TUSHUNCHALARNI RIVOJLANTIRISH MUAMMOLARI”. Мактабгача таълим журнали, vol. 4, no. Preschool education journal, Dec. 2021, https://matinfo.jdpu.uz/index.php/presedu/article/view/4357.