Sabtu , 20 Jan 2018, 01:10 WIB

Minister inaugurates Toba Caldera National Geopark

REPUBLIKA.CO.ID, JAKARTA -- Minister of Energy and Mineral Resources Ignasius Jonan has inaugurated the Lake Toba Caldera Information Center in Parapat, Girsang Sipangan Bolon Sub-district, Simalungun District, North Sumatra...