USMONOV, M. T. o’g’li. Sonli qatorlar (Musbat hadli qatorlarning yaqinlashish teoremalari. Leybnis teoremasi, absolyut va shartli yaqinlashish). Science and Education, [S. l.], v. 4, n. 1, p. 13–35, 2023. Disponível em: https://openscience.uz/index.php/sciedu/article/view/4797. Acesso em: 11 may. 2024.