Collins, Michael, author
Kanisius, 2006
Buku Referensi
penyusun, Faridha ... [et al.]
Badan Litbang ESDM, 2021
Buku Teks
Charles B. Schmitt ... [and others] ; editor, Ahmad Norma Permata
Tiara Wacana Yogya, 1996
Buku Teks
Artikel Jurnal
Ahmad Suhelmi, author
Darul Falah , 1999
Buku Teks