Mekawichai, Pawut. 2024. “The Prevalence and the Associated Factors of Sleep-Related Problems in Patients with Parkinson’s Disease at Maharat Nakhon Ratchasima Hospital”. Maharat Nakhon Ratchasima Hospital Journal 34 (3). Nakhon Ratchasima,Thailand:169-76. https://he04.tci-thaijo.org/index.php/MNRHJ/article/view/1815.