Fadilah Ilham Ash Shiddiq, and Ega Trisna Rahayu. “Kontribusi Model Personalized System for Instruction (PSI) Terhadap Passing Bawah Bola Voli Siswa”. Jurnal Olahraga Dan Kesehatan Indonesia (JOKI), Vol. 3, no. 1, Dec. 2022, pp. 24-31, doi:10.55081/joki.v3i1.777.