Noom-ura, S. “Can a Self-Access Learning Center Really Help Language Learners?: A Study of the Achievement of SALC Users and Non-Users in Learning an English Course”. LEARN Journal: Language Education and Acquisition Research Network, vol. 4, Dec. 2012, pp. 42-60, https://so04.tci-thaijo.org/index.php/LEARN/article/view/102833.