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- $4.99Scientific Observation of Harmonic Drift in Lunar Dates Against Gregorian Calendar: 33 Years Recycling Lunar Calendar InclusiveAmazon
- SAVE $2.19$27.81$30.00His Appointed Times: Hebrew / Gregorian Calendar & Journal: Discover The Lord's Prophetic Calendar Journaling Your Way Month by Month December 2017 - April 2019Amazon
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