Basir, - and Satomi Kimijima, - and Masayuki Sakakibara, - and Sri Manovita Pateda, - and Koichiro Sera, - (2022) Contamination Level in Geo-Accumulation Index of River Sediments at Artisanal and Small-Scale Gold Mining Area in Gorontalo Province, Indonesia. International Journal of Environmental Research and Public Health.