“Pengaruh Jenis Penutup Botol Kultur Terhadap Pertumbuhan Planlet Kelapa Sawit (Elaeis Guineensis Jacq.) Effect of Different Culture Vessel Closures on the Growth of Oil Palm (Elaeis Guineensis Jacq.) Plantlets”. 2016. E-Journal Menara Perkebunan 79 (1). https://doi.org/10.22302/iribb.jur.mp.v79i1.68.