Harahap AA. Correlation of Ship Sanitation with Cockroach Density on Motor Vessel Docked in Port of Tanjung Perak Surabaya. JKL [Internet]. 2016 Jul. 5 [cited 2024 Aug. 3];8(2):172-83. Available from: https://e-journal.unair.ac.id/JKL/article/view/8011