\def\firstpage{1}
\def\lastpage{1}
\documentclass{mma2022}
\begin{document}
\begin{topmatter}
\title{ ... }
\author{ ... }
\vskip 0.2cm
\institution{...}
\address{ ... }
\email{ ... }
\end{topmatter}
\makeatletter
\c@page=\firstpage

% ************* Begin of Abstract ******************%
 ...
% ************* End of Abstract ******************%

\begin{thebibliography}{99}

\bibitem{1}
\artj
{ ... }
{ ... }              %it
{ ... }
{ ... }             %volume
{ ...}              %number
{}

\bibitem{2}
\artp
{ ... }
{ ... }          %it
{ ... }
{ ... }
{ ... }
{}

\bibitem{3book}
\book
{ ... }
{}
{ ... }    %it
{ ... }
{ ... }
{}

\end{thebibliography}

\end{document} 