Habif, Daniel. Inquebrantables, 2019: title page (Daniel Habif) page [4] of cover (He is a Spanish-speaking motivational speaker dealing with issues of self-esteem and personal development.)

Habif, Daniel. Inquebrantables, 2019: title page (Daniel Habif) inside back cover flap (Daniel Habif, born in Mazatlán Sinaloa, México, motivational speaker, author)

Internet Movie Database, Mar. 6, 2020 (Daniel Habif, actor, producer, born Oct. 6, 1986 in Mazatlán Sinaloa, México, birth name: Daniel Vazquez del Mercado Habif)