Kendagor, E. K., E. Ucakuwun, and V. Odenyo. “Mapping Cancer Prevalence in Elgeyo Marakwet County, Kenya, Using Geographical Information System”. The International Journal of Science & Technoledge, vol. 5, no. 9, Sept. 2017, http://internationaljournalcorner.com/index.php/theijst/article/view/123657.