Ref2
https://books.google.com.my/books?id=q0RPhIargiwC&pg=PA81&lpg=PA81&dq=Tinospora+cordifolia+annual+rainfall&source=bl&ots=JVmeOdT6SP&sig=ACfU3U1FFn3Osv2kYewPMW8OoZWfjpP1Sw&hl=en&sa=X&ved=2ahUKEwiI-e6mqL3iAhULp48KHWVwCGUQ6AEwAXoECAkQAQ#v=onepage&q=Tinospora%20cordifolia%20annual%20rainfall&f=false