For people in the unorganized housing area, their houses are relatively small and they are close with each other in
the neighborhood. During the social interaction, they talk about new products (food and non-food). It becomes
informal advertisement media. Because the area is packed, they do not have any trash bin. They put their trash in a
plastic bag (they hang it up in front of their front door), and the sanitation officer will carry their waste bag using a
wheeled cart. In the organized housing area, the sanitation officer uses a motor vehicle to carry the waste every other
day.
NiLuh Widyaningsih et al. / Procedia Environmental Sciences 28 ( 2015 ) 195 – 203