Henita Rahmayanti, Ilmi Zajuli Ichsan, Vina Oktaviani, Yusuf Syani, Winoto Hadi, Giry Marhento 2020. Environmental Attitude for Smart City Technology: Need Assessment to Develop Smart Trash in Environmental Education. International Journal of Advanced Science and Technology. 29, 3 (Apr. 2020), 8374 - 8383.