9 To learn more about those years and the decades that followed, we encourage you to read pages 425-520 of the book Jehovah's Witnesses  - Proclaimers of God's Kingdom, which relate what the harvest work accomplished from 1919 to 1992.
9 Ukuze uthole okwengeziwe ngaleyo minyaka neminye eyalandela, sikukhuthaza ukuba ufunde amakhasi 425-520 encwadi ethi OFakazi BakaJehova - Abamemezeli BoMbuso KaNkulunkulu, akhuluma ngalokho okwafezwa umsebenzi wokuvuna kusukela ngo-1919 kuya ku-1992.