Ha, G., & Do, D. (2019). FACTORS AFFECTING CONSUMERS’ ATTITUDE TO SMARTPHONE ADVERTISING IN HO CHI MINH CITY. TRA VINH UNIVERSITY JOURNAL OF SCIENCE; ISSN: 2815-6072; E-ISSN: 2815-6099, 7(25), 20-27. https://doi.org/10.35382/18594816.1.25.2017.115