LIU, Shengming. Big Data Analysis of the Tourism Linkage of the Yangtze River Delta Using Stata Calculation and Improved Gravity Model. Highlights in Science, Engineering and Technology, [S. l.], v. 23, p. 1–7, 2022. DOI: 10.54097/hset.v23i.3120. Disponível em: https://drpress.org/ojs/index.php/HSET/article/view/3120. Acesso em: 21 jun. 2026.