Asyrofi, Muhammad, Hari Sulistiyowati, & Retno Wimbaningrum.
" Preliminary Assessment of The Population Structure and Habitat Characteristics of Javan Langur (Trachyphitecus auratus É. Geoffroy, 1812) in Natural Reserve Watangan Puger." <em>Jurnal ILMU DASAR</em> [Online], 23.1 (2022): 29-36. Web. 19 Apr. 2024