Yamazaki Genʼichi. The Structure of Ancient Indian Society: Theory and Reality of the Varṇa System

Toyo Bunko, 2005. — 259 p.The Brahmana: Proponents for the Varna System.
The Ksatriya: Warriors and Kings.
The Vaisya: Citizens and Peasants.
Urban Merchants: Gahapati, Satthavaha, and Setthi.
Rural Life as Seen in Buddhist Sources.
Sudras and Candalas: The Servile Class and Untouchables
Sudras: the Sevile Varna
Candalas: The Untouchables of Ancient India
Brahmanas and Candalas: One Aspect of Ancient India's Varna Social System
Epilogue Evolvement of the Varna/ Caste System in Medieval India