Leopold, Werner F., 1896-
Speech development of a bilingual child : a linguist's record
Northwestern University, 1947
 Buku Teks SO
One mind, two languages: bilingual language processing
edited by Janet l. Nicol
Blackwell , 2006
 Buku Teks SO
Silva Audya Perdana
Association between intensity of watching TV and child language development in children aged 18 Months to 3 Years Old = Hubungan lama menonton TV dengan perkembangan bahasa anak pada anak usia 18 bulan sampai 3 tahun
2017
 UI - Skripsi Membership
Berk, Laura E.
Child development / Laura Berk V.
Allyn and Bacon, 1997
 Buku Teks SO
Research methods in child language : a practical guide
Erika Hoff, editor
Wiely-Blackwell, 2012
 Buku Teks SO