Kamal, M., and S. Martini. “The Lack of Counselling and Passively Case Detection Affecting the Occurrance of Grade 2 Disability in Sampang”. Jurnal Berkala Epidemiologi, vol. 3, no. 3, Sept. 2015, pp. 290-03, doi:10.20473/jbe.V3I32015.290-303.