Hernandez, W. J. O., & Tiangco, C. F. (2014). Role echoing scale: Development reliability and validity. University of the Philippines Diliman Extension Program in Pampanga.
Chicago-viite (17. p.)Hernandez, Wedcell Joseph O., ja Cristabel Fagela Tiangco. Role Echoing Scale: Development Reliability and Validity. Pampanga: University of the Philippines Diliman Extension Program in Pampanga, 2014.
MLA-viite (9. p.)Hernandez, Wedcell Joseph O., ja Cristabel Fagela Tiangco. Role Echoing Scale: Development Reliability and Validity. University of the Philippines Diliman Extension Program in Pampanga, 2014.
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