8,865 Husna Zolkepli 2020-03-27 https://books.google.com.my/books?id=Q8xgM8Hf_L8C&pg=PT112&lpg=PT112&dq=Diplazium+esculentum+NPK&source=bl&ots=mLbJz-ZPxK&sig=ACfU3U2iK1lsnIr6gZiPwV7WeGr7HZdo5Q&hl=en&sa=X&ved=2ahUKEwinmarcrrTnAhUKXn0KHXJIC3IQ6AEwD3oECAsQAQ#v=onepage&q=Diplazium%20esculentum%20NPK&f=false Cairn, M, (2010). Voices from the Forest: Integrating Indigenous Knowledge into Sustainable Upland Farming. Retrieved from https://books.google.com.my/books?id=Q8xgM8Hf_L8C&pg=PT112&lpg=PT112&dq=Diplazium+esculentum+NPK&source=bl&ots=mLbJz-ZPxK&sig=ACfU3U2iK1lsnIr6gZiPwV7WeGr7HZdo5Q&hl=en&sa=X&ved=2ahUKEwinmarcrrTnAhUKXn0KHXJIC3IQ6AEwD3oECAsQAQ#v=onepage&q=Diplazium%20esculentum%20NPK&f=false