Lawrence, Anne
Self-esteem and your child: a guide to happy parenting
Minerve Press, 1996
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M. Rojaya
Happy with zikir
DAR! Mizan , 2006
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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
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Gola Gong
Happy valentine / Gola Gong
Gramedia Pustaka Utama, 1992
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Batra, Promod
Born to be happy: mengelola relasi dalam bisnis
Bhuana Ilmu Populer, 2004
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