McMillon, Bill
John Wiley & Sons, 1991
Buku Referensi
Mahmud Bangkaru
Banda Aceh Dinas Pariwisata Aceh 1996,
Buku Referensi
Fishkin, Rand
Penguin, 2018
Buku Teks
Flynn, Peter
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Buku Teks SO
Boss, Suzie
ISTE (International Society for technology in education), 2007
Buku Teks