Experimental Investigation, Techno-Economic Analysis and Environmental Impact of Bioethanol Production from Banana Stem oleh Nazia Hossain, Alyaa Nabihah Razali, Teuku Meurah Indra Mahlia, Tamal Chowdhury, Hemal Chowdhury, Hwai Chyuan Ong, Abd Halim Shamsuddin, Arridina Susan Silitonga