Siddhanta Siromani of Bhaskaracharya: Gola Adhyaya (Hindi) by Girija Prasad Dwevedi
Astronomy and astrological calculations
Siddhānta Śiromaṇi (Sanskrit: सिद्धान्त शिरोमणि for “Crown of treatises”) is the major treatise of Indian mathematician Bhāskara II. He wrote the Siddhānta Śiromaṇi in 1150 when he was 36 years old.
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Siddhanta Siromani of Bhaskaracharya by D Arkasomayaji
Translation Of The Sûrya-siddhânta: Text-book Of Hindu Astronomy by Ebenezer Burgess (1858)
Surya Siddhanta सूर्य – सिद्धान्त (Hindi) (Both Volumes I and II) by Mahaveer Prasad Srivastav