WALAI AutoLIB – RSSRSSWALAI AutoLibKhao Yai : Dong Phaya Yen forest range / Tourism Authority of Thailand.http://lib.tat.or.th/catalog/BibItem.aspx?BibID=b00000236<img src="http://tourismlibrary.tat.or.th/bookcover/236/236-fc-t.gif" align="left" height="150" width="120"/>A tourist development study of Khao Yai National Park in Thailand /http://lib.tat.or.th/catalog/BibItem.aspx?BibID=b00000043<img src="http://tourismlibrary.tat.or.th/bookcover/43/43-fc-t.gif" align="left" height="150" width="120"/>180504Variable factors in behavior towards conservation of the natural resources and environment of Khao Yai National Park / Wichyanont Sutthaso.http://lib.tat.or.th/catalog/BibItem.aspx?BibID=b00004214<img src="http://tourismlibrary.tat.or.th/bookcover/4214/4214-fc-t.gif" align="left" height="150" width="120"/>