Butanas, Marilou Auxtero Pedroso, and Bienvenido Masirin Butanas Jr. 2018. “Elemental and Infrared Characterization of Contaminants in Second-Hand Cotton Garments From Flea Markets In Valencia City, Bukidnon, Philippines”. Jurnal Penelitian Fisika Dan Aplikasinya (JPFA) 8 (1):10-16. https://doi.org/10.26740/jpfa.v8n1.p10-16.