?url_ver=Z39.88-2004&rft_id=10.4028%2Fwww.scientific.net%2FAMR.660.158&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=May&rft.au=May%2C+Z.B.&rft.aufirst=Z.B.&rft.atitle=Smart+energy+saving+classroom+system+using+programmable+logic+controller&rft.pages=158-162&rft.volume=660&rft.issn=10226680&rft.isbn=9783037856413&rft.date=2013&rft.title=Advanced+Materials+Research&rft.genre=article