Nyawiji, Kholifah. 2022. “Identification and Inventory of Lichen on Tree in the Rehabilitation Block of Sermo Kulon Progo Wildlife Reservation and Its Control in the Form of Booklets As Learning Sources”. Proceeding International Conference on Religion, Science and Education 1 (February):537-45. http://sunankalijaga.org/prosiding/index.php/icrse/article/view/834.