Asbur, Yenni, Sudirman Yahyar, Kukuh Murtilaksono, Sudradjat ., and Edy S. Sutarta. 2015. “Study of Asystasia Gangetica (L.) Anderson Utilization As Cover Crop under Mature Oil Palm With Different Ages”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 19 (2):137-48. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/3315.