Your search for "used" revealed the following:

Early Buddhism

Letters to a Young Philosopher (A Mature Philosopher At The Height Of His Powers)

Hymns to The Goddess

A Child of Destiny An Autobiography

The Bhagavad Gita with Commentary of Sri Aurobindo

Yog: Its Philosophy and Practice

The Original Philosophy of Yoga (The Yogasutras of Patanjali)

कृष्णयजुर्वेदीय तैत्तिरीय संहिता मन्त्रा: Krishna Yajur Veda Taittiriya Samhita Mantras - Kandas 1 to 7

From Bactria to Taprobane (Volume II Art History and Maritime Trade)

Krtima Nimalai - Sri Muddusvami Diksitars Compositions (With Notation)

Sri Aurobindo For All Ages

Select Right Profession Through Astrology (A Complete Book Giving Fundamentals, Predictive Techniques and Case Studies)

History & Origin of Indian Tribes

Influence (How to Exert It)

Geriatrics In Ayurveda

सामवेद संहिता- The Samaveda Samhita (Text, Translation, Commentary & Notes in English, Mantra Index, & name Index, Mantras Found & Not found in The Rgveda Etc.) (An Old and Rare Book)

वाक्यवादः (हरियशोमिश्र - विरचितया वाक्यदीपिकया समलङ्कृतः)- Vakyavadah- With Hariyasomisra's Commentary Vakyadipika (Sanskrit Text, Transliteration, English-Hindi Translation & Explanatory Notes in English - Hindi - Sanskrit)

How to Be Valuable, Virtuous & Wealthy

Space Time Consciousness- The Fifth Dimension

The Six ways of Knowing (A Critical Study of the Advaita Theory of Knowledge)