Seradona Altiria
2016
UI - Tesis Membership
Hybels, Saundra
D. Van Nostrand, 1974
Buku Teks SO
Vowels : J.P. Kelly and J.B. Heley
Majalah, Jurnal, Buletin
Haworth, Alan
Routledge, 1998
Buku Teks SO
Lukman Hakim Saifudin
Balitbang Diklat Kementrian Agama RI, 2021
Buku Teks SO