Villoria, O. G. J. I.E: O.R. research and development opportunities in distribution and transportation. Philippine Engineering Journal.
Chicago Style (17th ed.) CitationVilloria, Olegario G. Jr. "I.E: O.R. Research and Development Opportunities in Distribution and Transportation." Philippine Engineering Journal .
MLA (9th ed.) CitationVilloria, Olegario G. Jr. "I.E: O.R. Research and Development Opportunities in Distribution and Transportation." Philippine Engineering Journal, .
Warning: These citations may not always be 100% accurate.