Gwen Robbins Schug؛ Subhash R. Walimbe (13 أبريل 2016). A Companion to South Asia in the Past. John Wiley & Sons. ص. 39–. ISBN:978-1-119-05547-1. مؤرشف من الأصل في 2021-05-15. Quote: “Soanian and Soanian‐like assemblages are known throughout the entire Siwalik or Sub‐ Himalayan region, from Pakistan to Nepal...”
Gwen Robbins Schug؛ Subhash R. Walimbe (13 أبريل 2016). A Companion to South Asia in the Past. John Wiley & Sons. ص. 39–. ISBN:978-1-119-05547-1. مؤرشف من الأصل في 2021-05-15. Quote: “Soanian and Soanian‐like assemblages are known throughout the entire Siwalik or Sub‐ Himalayan region, from Pakistan to Nepal...”