“Efektivitas Latihan Coping Strategy Berbasis Problem-Focused Coping (PFC) terhadap Tingkat Kecemasan Pra-Pertandingan Atlet Petanque UNDIKMA”, sj, vol. 4, no. 2, pp. 68–78, Dec. 2024, doi: 10.36312/sj.v4i2.2686.