Isaias Giya sa Pag-research Para sa Mga Saksi ni Jehova—Edisyon 2019 25:2 An Torrengbantayan,4/15/2001, p. 123/1/2001, p. 142/1/1988, p. 20-22 An Torrengbantayan, 3/15/2002, p. 22
25:2 An Torrengbantayan,4/15/2001, p. 123/1/2001, p. 142/1/1988, p. 20-22 An Torrengbantayan, 3/15/2002, p. 22