On the relationships and election activities of members of the National Assembly who are from Chumphon Provice, Thailand.
On polical culture and civic education for the development of the democracy political system in Thailand.
History of Northern Thailand.
Historical study of overseas Chinese people and politics of China with foreign relations in Southeast Asia.
On the social, economic, and political conditions according to entrepreneur Wikrom Kromdit.
On mental and emotional development according to Buddhism.
On history and social aspects of Buddhism in Northern Thailand.
Dictionary of Thai public health terms.