Prapaporn Ratano และ Warat Karuchit. (2018) Digital competence and digital literacy in social media usage for the visually impaired youths in Thailand. National Institute of Development Administration:ม.ป.ท.Prapaporn Ratano และ Warat Karuchit. 2018. Digital competence and digital literacy in social media usage for the visually impaired youths in Thailand. ม.ป.ท.:National Institute of Development Administration;Prapaporn Ratano และ Warat Karuchit. Digital competence and digital literacy in social media usage for the visually impaired youths in Thailand. ม.ป.ท.:National Institute of Development Administration, 2018. Print.