Teerarat Napradit. 2005. Permian fusulinoidean limestones from east of Changwat Nakhon Sawan. Field of Study Earth Sciences, Chulalongkorn University;
Teerarat Napradit. (2005) Permian fusulinoidean limestones from east of Changwat Nakhon Sawan . Chulalongkorn University/Bangkok.
Teerarat Napradit. Permian fusulinoidean limestones from east of Changwat Nakhon Sawan. . Bangkok:Chulalongkorn University, 2005.
Teerarat Napradit. (2005) Permian fusulinoidean limestones from east of Changwat Nakhon Sawan . Chulalongkorn University/Bangkok.