[1]Cipto Dimas
- ^ Chernis, P J (1985). "Petrographic analyses of URL-2 and URL-6 special thermal conductivity samples". http://dx.doi.org/10.4095/315247. 6 (160f): 1. doi:== DOI == Periksa nilai
|doi=(bantuan). Hapus pranala luar di parameter|journal=(bantuan)