There has been data ("Tarombo Marga-Marga: Batak Toba, Angkola, Padanglawas, Mandailing, Simalungun, Karo, Dairi-Pakpak, Nias: Untuk Lintas Jenjang Pendidikan") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Tue Jan 7 22:05:17 2020, so the data displayed here has been removed .