จ่าดา ผด. Researching and analysis study concerns impacted from change system of television signal from analog to digital. NBTC. J. [Internet]. 2017 Dec. 15 [cited 2024 May 16];1(1):158-73. Available from: https://so04.tci-thaijo.org/index.php/NBTC_Journal/article/view/115733