Trinh, Son. 2022. “TACTIC TO IMPROVE THE PROVINCIAL COMPETITIVENESS INDEX (PCI)”. TRA VINH UNIVERSITY JOURNAL OF SCIENCE; P-ISSN: 2815-6072; E-ISSN: 2815-6099 12 (47), 11-20. https://doi.org/10.35382/tvujs.1.47.2022.919.