©2013 National Research Council of Thailand
Mongkol Ketumarn. 2002. Engineering study of vetiver grass as a component of roofing shingle material. Field of Study Appropriate Technology for Resources and Environmental Development, Mahidol University;
Mongkol Ketumarn. (2002) Engineering study of vetiver grass as a component of roofing shingle material . Mahidol University/Bangkok.
Mongkol Ketumarn. Engineering study of vetiver grass as a component of roofing shingle material. . Bangkok:Mahidol University, 2002.
Mongkol Ketumarn. (2002) Engineering study of vetiver grass as a component of roofing shingle material . Mahidol University/Bangkok.