Djumabaev N, Qalekeeva S. TRIGONOMETRIYALÍQ TEŃLEMELERDI SHESHIWDE AYÍRÍM KORENLERDIŃ JOǴALÍP KETIW JAǴDAYLARÍN ANÍQLAW USÍLLARÍ. SS. 2021;(3-2):56-58. Accessed August 7, 2026. https://journal.ndpi.uz/ss/article/view/2021-3-2-027