ชุมชิต เ, กฤตยพงษ์ ด. Legal Problems on the Consumer Protection a Case Study on Premium and Sweepstakes Promotion. RJPJ [Internet]. 2018 May 1 [cited 2024 Apr. 19];12(25):108-1. Available from: https://so05.tci-thaijo.org/index.php/RJPJ/article/view/121380