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Ha, H. T. T.; Hoang, T. V.; Do, H. N.; Luong, H. Q. THE COMMUNITY PERCEPTION OF MANGROVE CULTURAL SERVICES IN XUAN THUY NATIONAL PARK VIETNAM: Received: 14th February 2022; Revised: 03rd June 2022, 10th June 2022, 27th June 2022; Accepted: 30th June 2022. pijss 2022, 8, 21-39.