Harijati, N., R. Mastuti, N. Chairiyah, B. Roosdiana, and S. A. Rohmawati. “Effects of Seeding Material Age, Storage Time, and Tuber Tissue Zone on Glucomannan Content of Amorphophallus Muelleri Blume”. International Journal of Plant Biology, vol. 9, no. 1, Dec. 2018, doi:10.4081/pb.2018.7626.