%&LaTeX
\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{1}

\bibitem{Sellan_etal2021} Sellan, G., Brearley, F. Q., Nilus, R., Ttin, J., \& Majalap-Lee, N. (2021). Differences in soil properties among contrasting soil types in Northern Borneo. \textit{Journal of Tropical Forest Science}, \textit{33}(2), 191--202.

\end{thebibliography}

\end{document}

