Yusra, Tati, Edy Purwanto, and Awalya Awalya. “The Effectiveness of Classroom Guidance With Problem-Based Learning and Jigsaw Techniques to Improve Negative Attitudes towards Premarital Sexual Behavior”. Jurnal Bimbingan Konseling 9, no. 1 (January 21, 2020): 7-12. Accessed December 21, 2024. https://journal.unnes.ac.id/sju/jubk/article/view/34629.