Naskah batu basurek ko manuruik pambacoan [[Johan Hendrik Caspar Kern|Kern]], sbb.:<ref>{{Cite book|url=http://www.univpgri-palembang.ac.id/perpus-fkip/Perpustakaan/History/Seni%20Pahat%20Budha%20Indonesia.pdf|title=Violence and Serenity: Late Buddhist Sculpture from Indonesia|last=Reichle|first=Natasha|publisher=University of Hawai‘i Press|year=2007|isbn=978-0-8248-2924-7|location=|pages=202-204}}</ref><ref name="Istiawan">Istiawan, Budi (2006) [https://kebudayaan.kemdikbud.go.id/bpcbbatusangkar/wp-content/uploads/sites/28/2014/12/Selintas-Prasasti-Melayu-Kuno-Budi-Istiawan.pdf Selintas Prasasti dari Melayu Kuno], Cet.1, Balai Pelestarian Peninggalan Purbakala Batusangkar (Wilayah Kerja Provinsi Sumatera Barat dan Riau), hlm 26-28.</ref><ref>{{Cite book|url=http://www.univpgri-palembang.ac.id/perpus-fkip/Perpustakaan/History/Seni%20Pahat%20Budha%20Indonesia.pdf|title=Violence and Serenity: Late Buddhist Sculpture from Indonesia|last=Reichle|first=Natasha|publisher=University of Hawai‘i Press|year=2007|isbn=978-0-8248-2924-7|location=|pages=202-204}}</ref>