Sheik Osman, Wan Rozaini, Hapini Awang, and Abdullahi Hassan Birnin-Kudu. 2021. “Digital-Health Tourism Research-Methodology Coronavirus-Vaccination Trials: A Study Interpreting Geometa-Data Profiling to Use Mobile-Health Technologies Nigeria”. Emerging Advances in Integrated Technology 2 (2): 30-37. https://publisher.uthm.edu.my/ojs/index.php/emait/article/view/9963.