Thomas, Robert Murray, 1921-
Social strata in Indonesia a study of West Java villagers
Jakarta Antarkarya 1975
 Buku Teks
Jay, Robert R.
Javanese villagers : social relations in rural Modjokuto
MIT Press, 1969
 Buku Teks
Smith, Andrew
Comptia strata study guide
John Wiley & Sons, 2012
 Buku Teks SO
Syamsul Azhar
Minangkabau : social strata and culture / Syamsul Azhar
A. Azhar, 1980
 Buku Teks SO
Hari Sriwandi
Analisis kewirausahaan sosial pada gerakan pemuda kasus sekolah cermat binaan kammi Jawa Barat = Analysis of social entrepreneurship in youth movement case study of sekolah cermat targeted kammi West Java
Sekolah Kajian Stratejik dan Global Universitas Indonesia, 2017
 UI - Tesis Membership