Castillo, T. R. A., & Magpayo, C. J. A. (2019). (C)Sindak: An exploratory study on the impact of Sindak on the customer service styles of BeautyMNL's customer service agents. College of Arts and Letters, University of the Philippines Diliman.
Lua i Stíl Chicago (17ú heag.)Castillo, Tricia Renee A., agus Christine Joy A. Magpayo. (C)Sindak: An Exploratory Study on the Impact of Sindak on the Customer Service Styles of BeautyMNL's Customer Service Agents. Quezon City: College of Arts and Letters, University of the Philippines Diliman, 2019.
Lua MLA (9ú heag.)Castillo, Tricia Renee A., agus Christine Joy A. Magpayo. (C)Sindak: An Exploratory Study on the Impact of Sindak on the Customer Service Styles of BeautyMNL's Customer Service Agents. College of Arts and Letters, University of the Philippines Diliman, 2019.