Milumbe, B., J. Phiri, and M. Nyirenda. “A Tracking System to Enhance Transportation of Examination Materials Based on Spatial and Cloud Technologies”. Zambia ICT Journal, Vol. 5, no. 1, May 2021, pp. 16-23, https://ictjournal.icict.org.zm/index.php/zictjournal/article/view/109.