translated by Swami Prabhavananda and Frederick Manchester
Vedanta Press, 1947
Buku Teks
Fakultas Teknik Universitas Indonesia, 2014
UI - Skripsi (Membership)
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Litsey, Ryan, author
Chandos Publishing, 2017
Buku Teks
Nugraha Pukuh, author
Ministry of National Development Planning, 2017
Artikel Jurnal