Kaswar, A. B., S. Mamase, S. B. Musa, A. M. Hadi, A. Yuniarti, and A. Z. Arifin. “PARAMETER SIGMOID TRANSFORM CONTRAST ENHANCEMENT FOR DENTAL RADIOGRAPH CLASSIFICATION AND NUMBERING SYSTEM”. Jurnal Ilmu Komputer Dan Informasi, Vol. 8, no. 2, Aug. 2015, pp. 60 -67, doi:10.21609/jiki.v8i2.303.