“The Ethanol Extract of Tangse Liberica Coffee (Coffea liberica) Inhibited the Reduction of Leydig Cell Number and Testosterone Levels in Male Wistar Rats (Rattus norvegicus) Exposed to Ultraviolet B Light” (2022) European Journal of Biomedical Research, 1(5), pp. 1–6. doi:10.24018/ejbiomed.2022.1.5.24.