Lúkas Efnislykill að ritum Votta Jehóva – 2019 22:19 Varðturninn (námsútgáfa),1.2022, bls. 20-21 Von um bjarta framtíð, kafli 28 Varðturninn,1.5.2015, bls. 1215.1.2012, bls. 26-271.4.2003, bls. 4, 61.3.2003, bls. 211.3.1990, bls. 11-12, 14-15
22:19 Varðturninn (námsútgáfa),1.2022, bls. 20-21 Von um bjarta framtíð, kafli 28 Varðturninn,1.5.2015, bls. 1215.1.2012, bls. 26-271.4.2003, bls. 4, 61.3.2003, bls. 211.3.1990, bls. 11-12, 14-15