S. H. Yahaya, M. Y. Yuhazri, A. T. J. A. A. S. A. M. K. “Determination of Key Factors for Total Quality Management Implementation for Airport Using AHP”. Mathematical Statistician and Engineering Applications, vol. 71, no. 3, May 2022, pp. 67-83, doi:10.17762/msea.v71i3.107.