IPB University Students Create Rumangka, An Eco-Friendly Home. Three students of the Department of Civil and Environmental Engineering (SIL), Faculty of Agricultural Technology (Fateta), IPB University namely Akhmad Nabil Punggawa, Hilman Ridho Rahman, and Muh. Irham Sahana initiated an Eco-drainage-based Home (Rumangka) based on water conservation efforts in the city of Bogor