Shukurov, Z.Q., E. Ergashova, and M. Ashirova. “KOMPLEKS SONLARNI TRIGONOMETRIK KO‘RINISHINING SODDA IFODASI VA EYLER FORMULASINING SODDA ISBOTI”. FAN, TA’LIM VA AMALIYOT INTEGRATSIYASI (May 13, 2023): 291-295. Accessed December 27, 2024. https://journal.bilig.uz/isepsmj/article/view/384.