Badrah, S., Anwar, A., & Y. A, P. (2017). The Relation between Either of Hygiene Food Handlers or Presentation Food and Coliform Bacteria Contamination in the Food Street of Elementary School. International Journal of Sciences: Basic and Applied Research (IJSBAR), 32(1), 270–279. Retrieved from https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7044