APA (7th ed.) Citation

Sarumpaet, R. Rahasia mendidik anak. Indonesia publishing house.

Chicago Style (17th ed.) Citation

Sarumpaet, R.I. Rahasia Mendidik Anak. Indonesia publishing house.

MLA (8th ed.) Citation

Sarumpaet, R.I. Rahasia Mendidik Anak. Indonesia publishing house.

Warning: These citations may not always be 100% accurate.