Saya mau tau Daftar pustaka dari Tulang Ishango

Shurkin, J.: Engines of the mind: a history of the computer, W. W. Norton & Co., 1984., p21

Bogoshi, J., Naidoo, K. and Webb, J.: "The oldest mathematical artifact", Math. Gazette, 71:458 (1987) 294.

V. Pletser, D. Huylebrouck, "Contradictions and narrowness of views in "The fables of Ishango, or the irresistible temptation of mathematical fiction", answers and updates", [3]