[1] https://www.statista.com/topics/1053/casinos/
[2] https://www.statista.com/statistics/253760/number-of-gaming-tables-in-casinos-in-macao/
[3] https://www.sciencedirect.com/science/article/pii/S0264275117308995?via%3Dihub
[4] https://www.statista.com/statistics/955839/macau-number-of-visitors-staying-overnight/
