Lawrence, Anne
Self-esteem and your child: a guide to happy parenting
Minerve Press, 1996
 Buku Teks SO
M. Rojaya
Happy with zikir
DAR! Mizan , 2006
 Buku Teks SO
Levy, John
The happy family
Alfred A. Knoff, 1964
 Buku Teks SO
Anhari Achadi
District health information system on maternal, newborn and child health how good is it? a case of Deli Serdang and Sumedang Districts
Fakultas Ilmu kesehatan Masyarakat Universitas Indonesia, 2010
 Artikel Jurnal
Gola Gong
Happy valentine / Gola Gong
Gramedia Pustaka Utama, 1992
 Buku Teks SO