References – Aṅguttara Nikāya  
Sutta / Aṅguttara Nikāya (321)

AN 1: The Book of the Ones (16)

AN 2: The Book of the Twos (6)

AN 3: The Book of the Threes (31)

AN 4: The Book of the Fours (53)

AN 5: The Book of the Fives (35)

AN 6: The Book of the Sixes (29)

AN 7: The Book of the Sevens (19)

AN 8: The Book of the Eights (21)

AN 9: The Book of the Nines (21)

AN 10: The Book of the Tens (77)

AN 11: The Book of the Elevens (13)