documentclass{report}
usepackage[utf8]{inputenc}
usepackage{url}
usepackage{natbib}
usepackage{hyperref}

begin{document}

citep{latex2e} \
citep{knuth} \
citep{frattini2013} \
citep{frattini20132yazar} \
cite{Ansin1994} \
citep{web}  \

bibliographystyle{KTUtez}
bibliography{tez}

end{document}