Melisia Windhi Astuti; Nurdin Laugu, -  (2017) A Model of Preservation in Managing Old Collection at the Library of Kolese St. Ignatius Yogyakarta, Indonesia.  In: 5th International Conference of Asian Special Libraries (ICoASL 2017) : Curation and Management of Cultural Heritage through Libraries: Challenges and Opportunities for the Digital Society, 10-12 May 2017, Yogyakarta.