Book of Jasher 25:5
And the sons of Shuach were Bildad, Mamdad, Munan and Meban; all these are the families of the children of Keturah the Canaanitish woman which she bare unto Abraham the Hebrew.
And the sons of Shuach were Bildad, Mamdad, Munan and Meban; all these are the families of the children of Keturah the Canaanitish woman which she bare unto Abraham the Hebrew.