Ridwan Saidi, 1942-, author
Perkumpulan Renaissance Indonesia, 2011
Buku Teks
Artikel Jurnal
N. (Nobertus) Riantiarno, 1949-, author
Grasindo, 2016
Buku Teks
Center for community development & education,
Majalah, Jurnal, Buletin
Pakpahan, Muchtar, author
Pustaka Forum Adil Sejahtera, 1996
Buku Teks