Volume 12 Number 4 (Apr. 2021)

Article#	Type	Article Title & Authors ( Volume 12 Number 4 (Apr. 2021))	Page
1325	Article	New Normal Role in PM2.5 Reduction in Bangkok by Sopa Chinwetkitvanich Thawat Ngamsritrakul Sirima Panyametheekul	100
1326	Article	Comparative Study between Membrane Bioreactor MBR and Rotating Biological Contactors RBC for Greywater Treatment by Amr M. Abdelkader	107
1327	Article	Fe(III)-Aqua Complex Mediated Photodegradation of Methylene Blue Dye by Ashfeen Nawar Md. Ataur Rahman Md. Mufazzal Hossain	112
1328	Article	The Level of Threats and Community Capacity Concerning to Landslide Emergency in Banjarnegara Indonesia by Erni Suharini Fakhfiyani Arfina Edi Kurniawan	118
1329	Article	Evaluation of Boosted Regression Tree for the Prediction of the Maximum 24-Hour Concentration of Particulate Matter by Wan Nur Shaziayani Ahmad Zia Ul-Saufie Syarifah Adilah Mohamed Yusoff Hasfazilah Ahmat Zuraira Libasin	126