et. al., I.-W. K. . (2021) “An Empirical Study on the External Environment, Brand Expansion Strategy, and Core Competence of Business”, Turkish Journal of Computer and Mathematics Education (TURCOMAT), 12(10), pp. 987–995. Available at: https://www.turcomat.org/index.php/turkbilmat/article/view/4283 (Accessed: 28April2024).