# comma between author and year in harvardstyle Sagej

I need to insert comma between the name of author and year in Harvard style

\documentclass[Afour,sageh,times]{sagej}
\setcounter{secnumdepth}{3}
\usepackage{latexsym,amsfonts,amssymb}
\usepackage{amsmath}
\newtheorem{definition}{Definition}
\newtheorem{remark}{Remark}
\newtheorem{theorem}{Theorem}
\newtheorem{corollary}{Corollary}
\newtheorem{lemma}{Lemma}
\newtheorem{proposition}{proposition}
\newtheorem{example}{Example}
\usepackage{moreverb,url}
\usepackage{subcaption}
\captionsetup[subfigure]{justification=RaggedRight}
\newcommand\BibTeX{{\rmfamily B\kern-.05em \textsc{i\kern-.025em b}\kern-.08em
T\kern-.1667em\lower.7ex\hbox{E}\kern-.125emX}}
\def\volumeyear{2016}


I use \citep{} in the text, and in the end of my article, I use

\bibliographystyle{SageH}
\bibliography{refrencestyle}


I need to for example:

(Phat, 2005; Sun et al., 2006)

but LaTeX gives me

(Phat 2005; Sun et al. 2006)

without comma

• Welcome to TeX.SE. – Mico Mar 18 '19 at 17:50
• Off-topic: Since you're loading the amssymb package, there can be no valid reason for loading the latexsym package as well. – Mico Mar 18 '19 at 17:51
• No, I try it, which dose not work . I delete amssymb and try ! – manijeh Mar 18 '19 at 18:04
• No, don't strike amssymb off the list! Strike latexsym. – Mico Mar 18 '19 at 19:16

The sagej document class automatically loads the natbib citation management package. If you want citation call-outs generated by \citep to feature a comma between the author's name and the publication year, all you need to do is issue the instruction
\setcitestyle{aysep={,}}

For more information about the \setcitestyle macro (it can do a whole lot more than just instruct LaTeX to insert an extra comma here or there), see pages 12 and 13 of the user guide of the natbib package.