Hadiyanto, Noferdiman, Syamsurizal, Muhaimin, and I. Krisantia. “Students’ Soft Skills, Hard Skills, and Competitiveness (SHC): A Suggested Model for Indonesian Higher Education Curriculum”. International Journal of Learning, Teaching and Educational Research, vol. 20, no. 2, Feb. 2021, pp. 218-34, http://www.ijlter.myres.net/index.php/ijlter/article/view/158.