Mera AguasM. C., and Simbaña VillarrealE. A. “Solid Fuel Heat Capacity Assessment through Lignocellulosic Coffee Waste (Coffea Spp) Facing Espino Wood (Vachellia Macracantha) and Eucalyptus (Eucalyptus Globulus Labill)”. AXIOMA, no. 15, Dec. 2016, pp. 35-41, http://pucesinews.pucesi.edu.ec/index.php/axioma/article/view/457.