Lee, Ann Fuji, author
Routledge, Taylor & Francis Group, 2018
Buku Teks
Ross, H. Laurence
McGraw-Hill, 1963
Buku Teks
Rose, Arnold M., author
Houghton Miffiln, 1962
Buku Teks
Gravili, Ginevra, author
Emerald, 2017
eBooks
Miley, Karla Krogsrud, 1942-, author
Pearson, 2014
Buku Teks