A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 1

Filename: controllers/Document.php

Line Number: 69

Backtrace:

File: /home/rama/public_html/application/controllers/Document.php
Line: 69
Function: _error_handler

File: /home/rama/public_html/index.php
Line: 296
Function: require_once

@thesis{thesis, author={ZULFAN }, title ={PENGARUH PENAMBAHAN BUBUK KACA SEBAGAI BAHAN PENGGANTI SEBAGIAN SEMEN SEBESAR 4%, DENGAN VARIASI FAS 0,30, 0,35, 0,40 TERHADAP KUAT TEKAN DAN NILAI SLUMP}, year={2012}, url={https://etd.umy.ac.id/id/eprint/12562/}, abstract={} }