Walaiporn Patcharanarumol. 1997. A study of unit cost of out-patient and in-patient service of Khon Kaen hospital in the fiscal year 1996. Graduate School, Chulalongkorn University;

Walaiporn Patcharanarumol. A study of unit cost of out-patient and in-patient service of Khon Kaen hospital in the fiscal year 1996. . Bangkok:Chulalongkorn University, 1997.

Walaiporn Patcharanarumol. (1997) A study of unit cost of out-patient and in-patient service of Khon Kaen hospital in the fiscal year 1996 . Chulalongkorn University/Bangkok.