Amelia, D., Murni, I., Putri, A., Badri, J., & Johan, H. (2019). A Study of Clothing Industry Competitiveness with Porter’s Five Force Approach in Kabupaten Agam Central Industry (A Preliminary Study of Ampek Angkek, Banuhampu, Sungai Puar). KnE Social Sciences, 3(14), 169–185. https://doi.org/10.18502/kss.v3i14.4306