Surabaya Civil Engineering Green Architecture contractor settlement Clustering Content Analysis Environmental Eng Environmental Engineering OTTV Sustainability architecture building envelope clay climate change compressive strength construction energy energy saving expansive soil fly ash house ideology informal sector land use location owner quality control resident's satisfaction soft set stabilization teaching water absorption workability "Four-P" 05C12 05C20 05C35 2D modeling 3D visualization 94C15 : ISO 9000 ARCHITECTURE ART ART, INDUSTRY Adaptive Self-Tuning PID Controller (STCPID) Aggregate Gradation Airborne Sound Annual Radiation Received Apartment