Nurul Setyawati. “’Freezing’ As a Manuscript Preservation Method at Sonobudoyo Museum Library ”. Khizanah Al-Hikmah : Jurnal Ilmu Perpustakaan, Informasi, Dan Kearsipan, Vol. 11, no. 1, June 2023, pp. 27-42, doi:10.24252/kah.v11i1a4.