Buzurukov, B., and M. Zakirova. “Irregular Migration Through the Lens of Migration Theories: Testing Classical Theories in Explaining Visa Overstay in South Korea”. Journal of Population and Social Studies [JPSS], vol. 35, no. -, Mar. 2026, pp. 134-56, https://so03.tci-thaijo.org/index.php/jpss/article/view/289481.