Astuti, Melisia Windhi and Laugu, Nurdin  (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.   Prosiding, Vol. 1  (No. 1).  5th International Conference of Asian Special Libraries (ICoASL 2017), Yogyakarta, pp. 141-147.  ISBN 978819325175