“STUDI ANALITIS PENURUNAN FORCED EXPIRATORY VOLUME IN 1 SECOND PADA PEKERJAAN PENYELAM”. Healthy Tadulako Journal (Jurnal Kesehatan Tadulako), vol. 6, no. 1, Dec. 2020, pp. 13-20, https://doi.org/10.22487/htj.v6i1.97.