Bozorboy, K. ., and K. G. . Abduganiyevna. “On the Second-Degree Homogeneous Differential System’s Exclusive Directions”. European Multidisciplinary Journal of Modern Science, vol. 4, Mar. 2022, pp. 389-93, https://emjms.academicjournal.io/index.php/emjms/article/view/102.