LUTFULLAYEVA SADOQAT SUNNATILLAYEVNA. TESKARI TRIGONOMETRIK FUNKSIYALAR. JOURNAL OF NEW CENTURY INNOVATIONS, [S. l.], v. 67, n. 4, p. 16–18, 2024. Disponível em: https://scientific-jl.org/new/article/view/7477. Acesso em: 17 may. 2025.