I have the following latex code:
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{natbib}
\usepackage{epsfig}
\usepackage{subcaption}
\usepackage{graphicx}
\usepackage{hyperref}
\usepackage{calc}
\usepackage{float}
\usepackage{newclude}
\usepackage[margin=1in]{geometry}
\usepackage[section]{placeins}
\usepackage[french]{babel}
\usepackage{etoolbox}
\patchcmd{\thebibliography}{\section*}{\section}{}{}
\newenvironment{tightcenter}{%
\setlength\topsep{0pt}
\setlength\parskip{0pt}
\begin{center}
}{%
\end{center}
}
\begin{document}
\include{intro}
\include{stateart}
\include{matmet}
\include{perso}
\section{Conclusion}
\newpage
\bibliographystyle{plain}
\bibliography{references}
\end{document}
The problem is that references are not numbered, all I see is [] for each reference, and when I cite a reference, it is always cited as [0].
I use taxmaker with pdflatex + bibtex + pdflatex (x2) + view pdf quick build command.