So, Don Gabriel L. Determining the Efficiency of improvised cooler as an alternative home cooling appliances/ Don Gabriel L. So and six others. - Marikina City: Don Gabriel L. So, 2019 - 77 pages: illustrations; 28cm includes bibliographical references Subjects--Topical Terms: Energy EfficiencyEnergy SystemsHeat Engineering LC Class. No.: TK 1001 / S6 2019