Ratcliffe & Yusri Ibrahim. Kawallah kehidupan anda: Lima langkah rancangan pengurusan tekanan anda. Synergy Publications.
Chicago Style (17th ed.) CitationRatcliffe and Yusri Ibrahim. Kawallah Kehidupan Anda: Lima Langkah Rancangan Pengurusan Tekanan Anda. Kuala Lumpur: Synergy Publications.
MLA (8th ed.) CitationRatcliffe and Yusri Ibrahim. Kawallah Kehidupan Anda: Lima Langkah Rancangan Pengurusan Tekanan Anda. Synergy Publications.
Warning: These citations may not always be 100% accurate.