Yamamoto Kazuhiro และ Samniang Leurmsai. (2009) A comparative study of the concept "Truth" in the Upanisads and the Sutta-Pitaka. Silpakorn University:ม.ป.ท.Yamamoto Kazuhiro และ Samniang Leurmsai. 2009. A comparative study of the concept "Truth" in the Upanisads and the Sutta-Pitaka. ม.ป.ท.:Silpakorn University;Yamamoto Kazuhiro และ Samniang Leurmsai. A comparative study of the concept "Truth" in the Upanisads and the Sutta-Pitaka. ม.ป.ท.:Silpakorn University, 2009. Print.