Source: https://www.asean.org/wp-content/uploads/images/2013/economic/matm/Toolboxes%20for%20Six%20Tourism%20Labour%20Divisions/Specific%20Competencies/Housekeeping%20Division/Launder%20linen%20and%20guest%20clothes/TM_Launder_linen_&_guests_clothes_310812.pdf