Prof. A. Sreedhara Menon (1925–2010), a distinguished historian and Padma Bhushan awardee. Originally written in Malayalam. Primary Scope:
DC Books (Malayalam’s largest publisher) has officially digitized most of Sreedhara Menon’s works. You can purchase the official e-book for a nominal fee (usually ₹150–₹300 INR or ~$4 USD). Kerala Charithram Sreedhara Menon Pdf
DC Books , first released in 1967 and updated through several editions. Prof. A. Sreedhara Menon (1925–2010)
How Kerala's unique landscape and its relations with other countries (maritime trade) shaped its identity. Social Reforms: Kerala Charithram Sreedhara Menon Pdf