Ref1

https://books.google.com.my/books?id=-D1RR7A3HfUC&pg=PA67&dq=the+winged+beans+as+underutilised+crops&hl=en&sa=X&ved=0ahUKEwiO9-C-4qLlAhWv7HMBHQlgDBgQ6AEINTAC#v=onepage&q=the%20winged%20beans%20as%20underutilised%20crops&f=false