Sofiyan, Sofiyan, and Soedjajadi Keman. 2018. “Ship Sanitation and Sanitary Behavior of the Crew Influences to the Presence of Rats on Cargo Ship in the Port of Tanjung Perak Surabaya”. JURNAL KESEHATAN LINGKUNGAN 9 (2):145-53. https://doi.org/10.20473/jkl.v9i2.2017.145-153.