गौतमीयमहातन्त्रम्- Gautamiya Maha Tantra of Maharsi Gautama (An Old Book)
From Hindupedia, the Hindu Encyclopedia
गौतमीयमहातन्त्रम् - Gautamiya Maha Tantra of Maharsi Gautama (An Old Book) - Ramji Malaviya - A foundational text of Gautama's philosophical and tantric teachings.