Maletphan hǣng khwāmsuk
Publisher: Phǣnngān Sukkhaphāwa ʻOngkō̜n phāk ʻĒkkachon, Samnakngān Kōngthun Sanapsanun Kānsāngsœ̄m Sukkhaphāp
Published: 2009
Place of publication: Krung Thep Maha Nakhon]
Language: tha
Number of pages: 96
Description: Guideline for the creation and building of happiness in workplace.
Notes: In Thai.