Quang, Nguyen. “A PROPOSED FRAME OF REFERENCE FOR RESEARCH OF SAME-DIFFERENCE IN CROSS-CULTURAL COMMUNICATION AND PRAGMATIC FAILURE IN INTERCULTURAL COMMUNICATION: REFERENCE OF EXPRESSION (CULTURE)”. VNU Journal of Foreign Studies, vol. 37, no. 2, Apr. 2021, doi:10.25073/2525-2445/vnufs.4696.