Program of Physics and Science Center;
Faculty of Science and Technology;
Loei Rajabhat University;
Loei;
Thailand;
Thermoelectrics Research Center;
Faculty of Science and Technology;
Sakon Nakhon Rajabhat University;
Sakon Nakhon;
Thailand;
Thermoelectric; Thin; Film; Ca3Co4O9; CaMnO3; Bipolar; Pulsed-DC; Magnetron; Sputtering; System;