ELECHI, COMFORT EMMA, E. C. E., and N. E. NNUNKWE, ENYIOMA. “ENVIRONMENTAL HYGIENE: IMPLICATIONS FOR FOOD HANDLING”. NIGERIAN JOURNAL OF HEALTH PROMOTION, vol. 8, no. 1, Sept. 2015, https://journals.aphriapub.com/index.php/NJHP/article/view/2007.