Songkoon Chantachon. 2001. Indigenous knowledge edification of soil water and forest resources among the Kaloeng ethnic group. Field of Study Environmental Education, Mahidol University;
Songkoon Chantachon. (2001) Indigenous knowledge edification of soil water and forest resources among the Kaloeng ethnic group . Mahidol University/Bangkok.
Songkoon Chantachon. Indigenous knowledge edification of soil water and forest resources among the Kaloeng ethnic group. . Bangkok:Mahidol University, 2001.
Songkoon Chantachon. (2001) Indigenous knowledge edification of soil water and forest resources among the Kaloeng ethnic group . Mahidol University/Bangkok.