Maxkamov Xamidullo Qaxramonovich, and Mamalatifova Goʻzalxon Omonboy qizi. 2024. “TRIGONOMETRIK FUNKSIYALAR VA ULARNING XOSSALARI”. IMRAS 7 (12):31-35. https://journal.imras.org/index.php/sps/article/view/1929.