[1]
E. . De Gracia, J. . Casinillo, G. . Gamo, J. . Giente, J. A. . Handumon, and R. . Bangalisan, LPT, MRIEdr., “Effectiveness of Vacuum Eraser for Chalk Dust Removal”, AASgBCPJMRA, vol. 2, no. 1, Apr. 2020.