Madhyamapurush W. Tourism Management in Phu Hin Long Kran Nation Park, Phitsanulok. parichartj [internet]. 2018 Sep. 25 [cited 2026 Oct. 4];31(3):131-44. available from: https://so05.tci-thaijo.org/index.php/parichartjournal/article/view/147388