Jongkol Tumsoun. 2002. Quasi-hyperideals in multiplicative hyperrings. Field of Study Mathematics, Chulalongkorn University;
Jongkol Tumsoun. (2002) Quasi-hyperideals in multiplicative hyperrings . Chulalongkorn University/Bangkok.
Jongkol Tumsoun. Quasi-hyperideals in multiplicative hyperrings. . Bangkok:Chulalongkorn University, 2002.
Jongkol Tumsoun. (2002) Quasi-hyperideals in multiplicative hyperrings . Chulalongkorn University/Bangkok.