Onofre S., C., and K. U. Guiamal. “Multi-Layer Budding of Oversized Rubber (Hevea Brasiliences) Seedlings: Success and Growth in Different Soil Media”. Asian Journal of Advances in Agricultural Research, Vol. 17, no. 3, Dec. 2021, pp. 23-26, doi:10.9734/ajaar/2021/v17i330197.