Cara Berdoa yang Benar (Bagian 2)

Rumi, Jalalu'ddin. The Mathnawi of Jalalu'ddin Rumi, Konya Metropolitan Municipality (January 1, 2004) 

Goddard, Neville Lancelot. The Power of Awareness: Unlocking the Law of Attraction, CreateSpace Independent Publishing Platform (July 12, 2010)

Brmmer, Vincent. What Are We Doing When We Pray? On Prayer and the Nature of Faith, Routledge; Revised edition (August 28, 2008)

Rahutomo, Arief. Kita Ilmu Vibrasi : Manusia, Tuhan dan Alam Semesta, Eska Publishing, 2018.