Attwell, P.B.
Principles of engineering geology
Chapman and Hall, 1976
Buku Teks
Bell, F.G.
Fundamentals of engineering geology
Butherworth Heinemman, 1976
Buku Teks
Gilluly, James
Principles of geology
W.H. Freeman, 1975
Buku Referensi
Jurnal sumber daya geologi
Pusat Survei Geologi,
Majalah, Jurnal, Buletin
Model spasial penilaian rawan longsor studi kasus di Trenggalek
Artikel Jurnal