The spirit and purpose of geography / editors, S.W. Wooldridge, W.G. East
Hutchinson & Co., 1958
 Buku Teks SO
Pane, Sulaiman Abdullah
Klasifikasi dan klasterisasi mineral batuan di lapangan x berdasarkan data spektral (SWIR & TIR) menggunakan metode pembelajaran mesin = Classification and clasterization of rock minerals in field x based on spetral data (SWIR & TIR) using machine learning method.
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2020
 UI - Skripsi Membership
Wooldridge, S.W.
The Spirit and purpose of geography
Hutchinson University Library,, 1970
 Buku Teks SO
Singh, Bhawani
Engineering rock mass classification : tunneling, foundation, and Landslides
Elsevier, 2011
 Buku Teks
Sagala, Birean D.
Analisa risiko bahaya gerakan tanah pada fasilitas pengembangan panas bumi, di daerah Wayang Windu Jawa Barat
Universitas Indonesia, 2002
 UI - Tesis Membership