Alfirdaus, Z., N. Herachwati, J. Sulistiawan, B. Yudha, and M. Ruslananda. “Supervisor Safety Support As Predictor of Safety Climate”. Jurnal Inovasi Penelitian, Vol. 2, no. 7, Dec. 2021, pp. 2029-40, doi:10.47492/jip.v2i7.1050.