TY - JOUR T1 - Study on the Optimum Roof Type with 30° Roof Angle to Enhance Natural Ventilation and Air Circulation of a Passive Design AU - Siti Halipah Ibrahim,Qairuniza Roslan,Rohaida Affandi,Abdul Wafi Razali,Yon Syafni Samat,Mohd Nasrun Mohd Nawi JO - International Journal of Technology VL - 9 IS - 8 SP - 291 EP - 319 PY - 2018 DA - 2018/12/30 SN - 2087-2100 DO - https://doi.org/10.14716/ijtech.v9i8.2759 UR - https://ijtech.eng.ui.ac.id/article/view/2759