Phytoremediation of Heavy metal Contaminated Wastes from Small-scale Gold Mining Using Pityrogramma calomelanosZar Che Win, Leslie Joy L. Diaz, Teresita R. Perez and Kiyohiko NakasakiE3S Web Conf., 148 (2020) 05007DOI: https://doi.org/10.1051/e3sconf/202014805007