APA Citation

Douglas stone. (1999). Percakapan sulit jadi mudah. Jakarta: Bhuana Ilmu populer.

Chicago Style Citation

Douglas stone. Percakapan Sulit Jadi Mudah. Jakarta: Bhuana Ilmu populer, 1999.

MLA Citation

Douglas stone. Percakapan Sulit Jadi Mudah. Jakarta: Bhuana Ilmu populer, 1999.

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