DAFTAR PUSTAKA The Burning Stone, 2012, http://fahrygeologicas.blogspot.com/2012/04/batuan- ultrabasa.html (diakses pada 12 Maret 2015) Geologis Muda, 2013, https://geologismuda.wordpress.com/2013/01/06/batuan-beku- basa-dan-ultra-basa/ (diakses pada 12 Maret 2015) Ultramafic Rocks, 2015, http://en.wikipedia.org/wiki/Ultramafic_rock (diakses pada 12 Maret 2015)
The Burning Stone, 2012,
http://fahrygeologicas.blogspot.com/2012/04/batuan-ultrabasa.html
(diakses pada 12 Maret 2015)Geologis Muda, 2013,
https://geologismuda.wordpress.com/2013/01/06/batuan-beku-basa-dan-ultra-basa/
(diakses pada 12 Maret 2015)Ultramafic Rocks, 2015,
http://en.wikipedia.org/wiki/Ultramafic_rock (diakses pada 12 Maret
2015)
