Science of the Soul by A.C. Bhaktivedanta Swami

Attitudes Toward Reality: Exploitation, Renunciation, Dedication by Bhakti Rakshaka Sridhardeva Goswami

Vedantic Conception of Life, It's Meaning and Purpose by T.D. Singh, Ph.D.

The Science of Happiness by M. A. Marchetti, Ph.D. (B.M. Puri)

Life and Its Deeper Meaning by Phalguni Banerjee, M. Tech, and P. Suresh Kumar, M. Tech.