In situ Transesterification of Babassu for Production of Biodiesel as Sustainable Energy Option for Aratuba Community in State of Ceará, Brazil Francisca Belkise de Freitas Moreira, Rita de Cássia de Freitas Bezerra, Francisco Eduardo Arruda Rodrigues, João Carlos da Costa Assunção, Tathilene Bezerra Mota Gomes Arruda 105-112 2018-04-01