Nilobon Nanglae และ Pattarasinee Bhattarakosol. (2013) AUTHENTICATION INDICATORS USING BIO-DETECTION FUNCTION WITH TEXT-BASED CAPTCHA. Chulalongkorn University:ม.ป.ท.Nilobon Nanglae และ Pattarasinee Bhattarakosol. 2013. AUTHENTICATION INDICATORS USING BIO-DETECTION FUNCTION WITH TEXT-BASED CAPTCHA. ม.ป.ท.:Chulalongkorn University;Nilobon Nanglae และ Pattarasinee Bhattarakosol. AUTHENTICATION INDICATORS USING BIO-DETECTION FUNCTION WITH TEXT-BASED CAPTCHA. ม.ป.ท.:Chulalongkorn University, 2013. Print.