WALAI AutoLIB – RSSRSSWALAI AutoLibOxford collocations dictionary for students of english.http://www.opac.sskru.ac.th/opac/catalog/BibItem.aspx?BibID=b00029725<img src="https://www.opac.sskru.ac.th/bookcover/29725/29725-fc-t.gif" align="left" height="150" width="120"/>121020Longman dictionary of contemporary English.h /Evadne Adrian-Vallance...[et.al.], editors.http://www.opac.sskru.ac.th/opac/catalog/BibItem.aspx?BibID=b00028145<img src="https://www.opac.sskru.ac.th/bookcover/28145/28145-fc-t.gif" align="left" height="150" width="120"/>120719Longman exams dictionary.http://www.opac.sskru.ac.th/opac/catalog/BibItem.aspx?BibID=b00032786<img src="https://www.opac.sskru.ac.th/bookcover/32786/32786-fc-t.gif" align="left" height="150" width="120"/>130207