Cahyo, A. N., Sahuri, S., Nugraha, I. S., & Ardika, R. (2019). Cocopeat as Soil Substitute Media for Rubber (Hevea brasiliensis Müll. Arg.) Planting Material. Journal of Tropical Crop Science, 6(01), 18–29. https://doi.org/10.29244/jtcs.6.01.18-29