Novita Lestari Sinaga, R., and M. H. Sinaga. “Implementation of Individual Counseling Services Using Holland’s Theory to Help Ex-Drug Addicts Career Planning”. Edumaspul: Jurnal Pendidikan, Vol. 8, no. 1, Mar. 2024, pp. 2563-9, doi:10.33487/edumaspul.v8i1.8299.