Makmuroh, Siti. “Applying Cheerful Disco Learning for Improving of Motivation and Learning Result of PKn in Grade Viii C Students Junior High School 1 Kebumen in Second Semester 2013 2014 Academic Years”. Jurnal Civics: Media Kajian Kewarganegaraan, vol. 14, no. 1, May 2017, pp. 94-104, doi:10.21831/civics.v14i1.14565.