wulan, Wahyu wulandari, et al. “Changes in Anxiety Following a Brief School-Based Butterfly Hug Program Among Indonesian Ninth-Grade Students: A One-Group Pretest-Posttest Pilot Study”. Clinical Learning in Nursing, vol. 1, no. 1, July 2026, p. e005, https://journal.kenazer.com/index.php/cln/article/view/5.