Isaias Giya sa Pag-research Para sa Mga Saksi ni Jehova—Edisyon 2019 25:8 An Torrengbantayan,9/15/2014, p. 25-278/15/2009, p. 64/15/2001, p. 12-133/1/2001, p. 171/15/1995, p. 202/1/1988, p. 23-24 Kapahayagan Kulminasyon Kaiyan, p. 303 An Torrengbantayan, 3/15/2002, p. 22-23
25:8 An Torrengbantayan,9/15/2014, p. 25-278/15/2009, p. 64/15/2001, p. 12-133/1/2001, p. 171/15/1995, p. 202/1/1988, p. 23-24 Kapahayagan Kulminasyon Kaiyan, p. 303 An Torrengbantayan, 3/15/2002, p. 22-23