Theparath Tinsomboon. 1999. Improvement of aviation services operations : a benchmarking approach. Graduate School, Chulalongkorn University;
Theparath Tinsomboon. (1999) Improvement of aviation services operations : a benchmarking approach . Chulalongkorn University/Bangkok.
Theparath Tinsomboon. Improvement of aviation services operations : a benchmarking approach. . Bangkok:Chulalongkorn University, 1999.
Theparath Tinsomboon. (1999) Improvement of aviation services operations : a benchmarking approach . Chulalongkorn University/Bangkok.