Sumber : http://blackscript05.blogspot.com/search/label/Teknik%20PertambanganFoto 2.1Sistem Ventilasi di Tambang Bawah Tanah

Sumber : http://www.syafrilhernendi.com/Gambar 2.1Ventilasi Sistem Forcing

Sumber : http://www.syafrilhernendi.com/Gambar 2.2Ventilasi Sistem Exhausting

Sumber : http://www.syafrilhernendi.com/Gambar 2.3Ventilasi Sistem Overlap