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Somnuk Puangpronpitag and Wilailak Kaprasit. "Digital Signature Extension to Authenticate Mail Receivers", In Proceeding of the Conference on Application Research and Development (ECTI-CARD), 4-6 May 2009. Bangkok, Thailand. pp. 433 - 436.

Somnuk Puangpronpitag and Narongrit Masusai. "An Efficient and Feasible Solution to ARP Spoof Problem". In Proceedings of the International Conference on Electrical Engineering/Electronics, Computer, Telecommunications, and Information Technology (ECTICON). 6-9 May 2009. Pattaya, Chonburi, Thailand. pp. 910-913.