Ndraha, Taliziduhu
Metodologi penelitian pembangunan desa
Bina Rupa Aksara, 1982
 Buku Teks
Davis, Christine S.
Focus groups: applying communication theory through design, facilitation, and analysis
Routledge, Taylor & Francis Group, 2017
 Buku Teks
Bodgan, Robert
Kualitatif dasar-dasar penelitian
Usaha Nasional, 1993
 Buku Teks
Richard, Lyn, Author
Handling qualitative data : a practical guide
Sage, 2014
 Buku Teks
Siregar, Syofian
Metode penelitian kuantitatif : Dilengkapi dengan perbandingan perhitungan manual & SPSS
Kencana Prenada Media Group, 2017
 Buku Teks