©2013 National Research Council of Thailand
Poonsuk Thongnuam. 2004. Development of digital document retrieval system for petrochemicals. Field of Study Technology of Information System Management, Mahidol University;
Poonsuk Thongnuam. (2004) Development of digital document retrieval system for petrochemicals . Mahidol University/Bangkok.
Poonsuk Thongnuam. Development of digital document retrieval system for petrochemicals. . Bangkok:Mahidol University, 2004.
Poonsuk Thongnuam. (2004) Development of digital document retrieval system for petrochemicals . Mahidol University/Bangkok.