Isaias Giya sa Pag-research Para sa Mga Saksi ni Jehova—Edisyon 2019 60:17 An Torrengbantayan,7/15/2015, p. 9-112/15/2006, p. 26-287/1/2002, p. 16-176/1/2001, p. 18-191/15/2001, p. 20, 285/15/1995, p. 224/1/1990, p. 12-13 Namamahala Na an Kahadian!, p. 119, 129 An Torrengbantayan, 6/1/2003, p. 27
60:17 An Torrengbantayan,7/15/2015, p. 9-112/15/2006, p. 26-287/1/2002, p. 16-176/1/2001, p. 18-191/15/2001, p. 20, 285/15/1995, p. 224/1/1990, p. 12-13 Namamahala Na an Kahadian!, p. 119, 129 An Torrengbantayan, 6/1/2003, p. 27