Sianturi, P., Syarifuddin, A. and Saing, B. 2002. Incidence of epilepsy among patients with cerebral palsy (CP) in Yayasan Pemeliharaan Anak Cacat (YPAC) – Medan. Medical Journal of Indonesia. 11, 3 (Aug. 2002), 158-63. DOI:https://doi.org/10.13181/mji.v11i3.69.