Pertiwi, Dwi Lestari, and Tjipto Rini. “Preparation, Process And Reading Of Results Of The Direct Preparation Ziehl Neelsen At Referral Public Health Centers In Surabaya”. SANITAS: Jurnal Teknologi Dan Seni Kesehatan, vol. 11, no. 1, June 2020, pp. 41-52, doi:10.36525/sanitas.2020.4.