WALAI AutoLIB – RSSRSSWALAI AutoLibSpeech communication /William D. Brooks and Robert W. Heath.http://www.opac.sskru.ac.th/opac/catalog/BibItem.aspx?BibID=b00005042<img src="https://www.opac.sskru.ac.th/bookcover/5042/5042-fc-t.gif" align="left" height="150" width="120"/>520429Speech communication :made simple. /Paulette Dale and James C.Wolf.http://www.opac.sskru.ac.th/opac/catalog/BibItem.aspx?BibID=b00021333<img src="https://www.opac.sskru.ac.th/bookcover/21333/21333-fc-t.gif" align="left" height="150" width="120"/>100815