Nasruddin, J., and E. Nusantoro. “Faktor Penghambat Operasionalisasi Kunjungan Rumah Di SMA Negeri Se-Kota Semarang”. Indonesian Journal of Guidance and Counseling: Theory and Application, Vol. 4, no. 3, Sept. 2015, doi:10.15294/ijgc.v4i3.7558.