Porranee Keawram และ Wirojne Kanoksilapatham. (2013) Diversity of Hyperthermophilic Bacteria Belonging to Order Thermotogales Thriving in Three Hot Springs in Thailand: Resources of Genes Encoding Thermostable Enzymes. <i>Silpakorn University Science and Technology Journal</i>, <i>7</i>(2), 17-28.Porranee Keawram และ Wirojne Kanoksilapatham. "Diversity of Hyperthermophilic Bacteria Belonging to Order Thermotogales Thriving in Three Hot Springs in Thailand: Resources of Genes Encoding Thermostable Enzymes". Silpakorn University Science and Technology Journal 7 (2013):17-28.Porranee Keawram และ Wirojne Kanoksilapatham. Diversity of Hyperthermophilic Bacteria Belonging to Order Thermotogales Thriving in Three Hot Springs in Thailand: Resources of Genes Encoding Thermostable Enzymes. Silpakorn University Research and Development Institute:ม.ป.ท. 2013.