Isaias Giya ed Pan-research na Saray Tasi nen Jehova—2019 ya Edisyon 55:1 Say Panag-bantayan (Panaralan),11/2018, p. 4 Say Panag-bantayan,3/15/2002, p. 8 Say Panag-bantayan, 3/15/2003, p. 26-27, 29
55:1 Say Panag-bantayan (Panaralan),11/2018, p. 4 Say Panag-bantayan,3/15/2002, p. 8 Say Panag-bantayan, 3/15/2003, p. 26-27, 29