L. Amelia, R. Syahran, M. Munifah, and N. E. W. Riyadi, “The Effectiveness of Behavioral Contract Techniques in Addressing Smoking Among Students in School Settings”, JES, vol. 10, no. 6, pp. 351–365, Jun. 2026, doi: 10.31258/jes.10.6.p.351-365.