Sandoval A.N., Tavera J., Vela F., Calla K.M., Alba R.A., Lloclla H., Valverde Flores J.W., 2021, Adsorption of Gases by Internal Combustion of Trimobiles Using Activated Carbon Filter of Mauritia Flexuosa and Cocos Nucifera, Chemical Engineering Transactions, 85, 157-162.