Fitriana, M., M. Eddy Wibowo, and E. Purwanto. “The Effectiveness of CBT Group Counseling With a Cognitive Restructuring Technique to Reduce Students’ Smartphone Usage Problems”. Jurnal Bimbingan Konseling, Vol. 12, no. 2, Aug. 2023, pp. 100-5, doi:10.15294/jubk.v12i2.65454.