Non-Latin script references not evaluated.

Naik, Zakir. Similarities between Islam & Christianity, 2002: label (Dr. Zakir Naik)

Islamic Research Foundation Website, July 4, 2007: Dr. Zakir Naik p. (president IRF, Mumbai; Dr. Zakir Abdul-Karim Naik; medical doctor by professional training; student of Islam and comparative religion; 41 yrs. old; b. October 18, 1965 in Mumbai, India; M.B.B.S. (Bachelor of Medicine and Bachelor of Surgery), University of Mumbai)

The Qur'an and modern science, 2001: t.p. (Dr. Zakir Abdul-Karim Naik) cover (Dr. Zakir Naik)

Kurān̲um navīn̲a viññān̲amum, 2001: t.p. (Dr. Jākir Nāyk; M.B.B.S.) p. 4 of cover (b. Oct. 1965; founder and hd., Islamic Research Foundation, Mumbai)

Ḥaqīqat-i Z̲ākir Nāʼik, 2010: t.p. (Z̲ākir Nāʼik = ذاکر نائک)