Supreedee Dangskul และ Tuangrat Chaichana. (2008) Kummer's congruences for classical numbers. Chulalongkorn University:ม.ป.ท.Supreedee Dangskul และ Tuangrat Chaichana. 2008. Kummer's congruences for classical numbers. ม.ป.ท.:Chulalongkorn University;Supreedee Dangskul และ Tuangrat Chaichana. Kummer's congruences for classical numbers. ม.ป.ท.:Chulalongkorn University, 2008. Print.