Eclesiastes Giya sa Pag-research Para sa Mga Saksi ni Jehova—Edisyon 2019 12:1 An Torrengbantayan,7/15/2015, p. 12-131/15/2014, p. 18, 22-237/1/2011, p. 8-94/15/2010, p. 3-44/15/2008, p. 12-166/15/2005, p. 285/1/2004, p. 1411/15/1999, p. 13-189/1/1999, p. 218/15/1998, p. 8-912/15/1996, p. 3012/1/1996, p. 15-208/1/1990, p. 22-236/1/1987, p. 4-5
12:1 An Torrengbantayan,7/15/2015, p. 12-131/15/2014, p. 18, 22-237/1/2011, p. 8-94/15/2010, p. 3-44/15/2008, p. 12-166/15/2005, p. 285/1/2004, p. 1411/15/1999, p. 13-189/1/1999, p. 218/15/1998, p. 8-912/15/1996, p. 3012/1/1996, p. 15-208/1/1990, p. 22-236/1/1987, p. 4-5