WALAI AutoLIB – RSSRSSWALAI AutoLibElementary algebra :a graphing approach /Elaine Hubbard, Ronald D. Robinson.http://www.opac.sskru.ac.th/opac/catalog/BibItem.aspx?BibID=b00002920<img src="https://www.opac.sskru.ac.th/bookcover/2920/2920-fc-t.gif" align="left" height="150" width="120"/>520325Intermediate algebra :a graphing approach /Elaine Hubbard, Ronald D. Robinson .http://www.opac.sskru.ac.th/opac/catalog/BibItem.aspx?BibID=b00017402<img src="https://www.opac.sskru.ac.th/bookcover/17402/17402-fc-t.gif" align="left" height="150" width="120"/>530322