1. ISRO, Indian Regional Navigation Satellite System Signal in Space ICD for Standard Positioning Service (Version 1.1, ISRO-IRNSS-ICD-SPS-1.1), August 2017 Indian Space Research Organization
2. The Importance of the Indian Ocean: Trade, Security and Norms, 20 May, 2019. https://www.lki.lk/publication/the-importance-of-the-indian-ocean-trade-security-and-norms/
3. Zaminpardaz S, Teunissen, P J and Nadarajah N 2017 IRNSS/NavIC single point positioning: a service area precision analysis. Marine Geodesy 40: 259–274
4. Senanayake I P 2013 Anticipated prospects and civilian applications of Indian satellite navigation services in Sri Lanka. Egypt. J. Remote Sens. Space Sci. 16: 1–10
5. Thombre S, Zahidul M, Bhuiyan H, Söderholm S, Kirkko-Jaakkola, L R and Kuusniemi H 2014 Tracking IRNSS Satellites. Inside GNSS