“Pengaruh Penerapan Teknik Self Instruction dalam Meningkatkan Kepercayaan Diri Siswa di SMA Negeri 20 Pangkep: The Effect Of The Application Of Self Instruction Techniques In Increasing Students’ Confidence In SMA Negeri 20 Pangkep”, JPPBK, vol. 1, no. 1, hlm. 9–18, Des 2025, Diakses: Agu 26, 2026. Tersedia pada: https://journal.matappa.ac.id/index.php/JPPBK/article/view/4464