Asyrofi, Muhammad, 		Sulistiyowati, Hari, AND 		Wimbaningrum, Retno.
" 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], Volume 23 Number 1 (14 January 2022)