References

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Sittitanyakit, P., 2004. Thai History. Sookapab Jai Printing, Bangkok, ISBN: 9744093986.

Srisuro, W., 1993. Sim Isan. Faculty of Architecture University of Khon Kaen, Khon Kaen, Thailand, ISBN: 9748903141.

Tongprasert, J., 1987. The History of Buddhism in Southeast Asia. Karn Sassana Publishing, Bangkok, ISBN: 9747931532.

Wallipokom, S., 2005. Steel Age in Thailand. Samnakphim Matichon, Bangkok, ISBN: 9743234667.