Wardiyanta
Metode penelitian pariwisata
Andi, 2006
 Buku Teks
Metode penelitian
IGAk Wardani [and others]
Universitas Terbuka, 1997
 Buku Teks SO
Mohammad Nazir
Metode penelitian
Ghalia Indonesia, 1988
 Buku Teks SO
Sulistyo Basuki
Metode penelitian
Wedatama Widya Sastra, 2006
 Buku Teks SO
Mohammad Nazir
Metode penelitian
Ghalia Indonesia, 1999
 Buku Teks SO