Riso, Don Richard
Houghton Miffiln, 1995
Buku Teks
Don Richard Riso
Houghton Mifflin, 2000
Buku Teks
Mary, Leena
Springer Cham, 2019
eBooks
Crane, Rebecca, 1964-
Routledge, Taylor & Francis Group, 2017
Buku Teks
Dian Kurniasih Wahyu Sari
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2018
UI - Tesis Membership