1. University of Pennsylvania, Ms. Coll. 390 Item 605 DS ID: DS7783 Title: Viṣayatāvāda Author: Raghudeva Nyāyālaṅkāra Date: 1786.
2. University of Pennsylvania, Ms. Coll. 390 Item 620 DS ID: DS7798 Title: Padārthakhaṇḍanavyākhyā tīkā Author: Raghudeva Nyāyālaṅkāra Date: 1693.