Djumabaev, N. “KVADRAT TEŃLEMEGE KELTIRIW ARQALI SHESHILETUǴIN QURAMALI ALGEBRALIQ TEŃLEMELERDI SHESHIW USILLARI”. ILIM Hám JÁMIYET, no. 3-1, Aug. 2023, pp. 12-13, https://journal.ndpi.uz/ss/article/view/2023-3-1-006.