Vergara, N. J. A., & David Leonides T. Yap. (2017). Stakeholder roles approach for sustainability assessment in the context of heritage tourism development: The case of Angeles City, Pampanga. School of Urban and Regional Planning, University of the Philippines Diliman.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVergara, Norma Jean A., और David Leonides T. Yap. Stakeholder Roles Approach for Sustainability Assessment in the Context of Heritage Tourism Development: The Case of Angeles City, Pampanga. Quezon City: School of Urban and Regional Planning, University of the Philippines Diliman, 2017.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVergara, Norma Jean A., और David Leonides T. Yap. Stakeholder Roles Approach for Sustainability Assessment in the Context of Heritage Tourism Development: The Case of Angeles City, Pampanga. School of Urban and Regional Planning, University of the Philippines Diliman, 2017.