Paynich, Rebecca
Jones and Bartlett Publishers, 2010
Multimedia
Boba, Rachel
Sage, 2009
Buku Teks
Santos, Rachel Boba
Sage, 2017
Buku Teks
Taruga Runadi
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2017
UI - Tesis Membership
Boba, Rachel
Sage, 2005
Buku Teks