Book in the Balta [sic] language of Sumatra, on bark   Publication Date:   [n.d.] Type:   Book Format:   [27], [27] p. : colour illustrations ; 12.7 x 11.43 cm Source Institution:   SOAS University of London Holding Location:   SOAS University of London Subject Keyword:   Pustaha Grimoires Magic books Spatial Coverage:   Asia -- Indonesia -- North Sumatra Asia -- Indonesia -- Sumatera Utara Language:   Batak Book in the Balta [sic] language of Sumatra, on bark ( 3 volumes )