Alfonsius, Garry. “Sorting Out Business – Earn a Living During the Coronavirus Pandemic: Garry Alfonsius Bachelor of Science in Business Administration at Universal Institute of Professional Management UIPM Singapore”. Universal Journal 5, no. 1 (August 14, 2020). Accessed September 27, 2023. https://uipmcenter.net/ojs/index.php/journal/article/view/12.