Vol. 6 No. 3 (2021): IJoST: December 2021

This issue consists of 10 articles from 48 authors affiliated with 20 institutions from 10 countries including:

  • Iraq (the University of Technology, The Islamic University, University of Baghdad)
  • Malaysia (Taylor’s University)
  • Indonesia (Universitas Muhammadiyah Magelang, Universitas Negeri Padang, Institut Teknologi Bandung, Universitas Pendidikan Indonesia, Yogyakarta State University, Universitas Jember, Sampoerna University)
  • South Africa (Federal University of Petroleum Resources)
  • Colombia (Instituto Tecnológico Metropolitano, Institución Universitaria Pascual Bravo)
  • Spain (Universitat de Girona)
  • Japan (The University of Tokyo)
  • United States (The University of Arizona)
  • Brunei Darussalam (Universiti Brunei Darussalam)
  • Morroco (Mohammed Premier University)
Published: 2021-12-31

Research Paper