Apriantono, T., Hasan, F., Bahri, S., Bahana, I. and Rahadian, R.A. 2021. Level of nutrition knowledge personal trainer in West java. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran. 7, 3 (Dec. 2021), 454–466. DOI:https://doi.org/10.29407/js_unpgri.v7i3.16812.