Thitawadee Suvachananonda. 2004. Land characteristics affected to drought of Phetchaburi province. Field of Study Technology of Environmental Management, Mahidol University;
Thitawadee Suvachananonda. (2004) Land characteristics affected to drought of Phetchaburi province . Mahidol University/Bangkok.
Thitawadee Suvachananonda. Land characteristics affected to drought of Phetchaburi province. . Bangkok:Mahidol University, 2004.
Thitawadee Suvachananonda. (2004) Land characteristics affected to drought of Phetchaburi province . Mahidol University/Bangkok.