“Knowledge, Attitude and Practice of Hand washing among Street vendors in Campus of Universitas Padjadjaran, West Java from June-November 2012”, Althea Med J, vol. 2, no. 3, pp. 369–374, Sep. 2015, Accessed: Aug. 03, 2026. Available: https://journal.fk.unpad.ac.id/index.php/amj/article/view/500