Krisana Sethpiyanon. 1995. Stability of tetanus toxoid microcapsules. Graduate School, Chulalongkorn University;
Krisana Sethpiyanon. (1995) Stability of tetanus toxoid microcapsules . Chulalongkorn University/Bangkok.
Krisana Sethpiyanon. Stability of tetanus toxoid microcapsules. . Bangkok:Chulalongkorn University, 1995.
Krisana Sethpiyanon. (1995) Stability of tetanus toxoid microcapsules . Chulalongkorn University/Bangkok.