Pillai, S. (1991). Siddha system of thathwa Shastra: Specific faculties. Siddha Medical Literature Research Centre.
Cita Chicago (17th ed.)Pillai, S.Chidambarathanu. Siddha System of Thathwa Shastra: Specific Faculties. Madras: Siddha Medical Literature Research Centre, 1991.
Cita MLA (9th ed.)Pillai, S.Chidambarathanu. Siddha System of Thathwa Shastra: Specific Faculties. Siddha Medical Literature Research Centre, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.