Erizal, et al. “SINTESIS DAN KARAKTERISASI MEMBRAN KOMPOSIT KITOSANHIDROKSI APATIT BERIKATAN SILANG SEBAGAI GUIDED TISSUE REGENERATION (GTR)[Synthesis and Characterization of the Chitosan (Cs)-Hydroxyapatite (Ha) Crosslinked Composite Membrane for Guided Tissue Regeneration (GTR)]”. Jurnal Metalurgi, vol. 28, no. 1, Apr. 2013, pp. 55-64, doi:10.14203/metalurgi.v28i1.246.