* Imperial JS, Bautista RM, Randles JW (1985) Transmission of the coconut cadang-cadang viroid to six species of palm by inoculation with nucleic acid extracts. Plant Pathology 34, 391-401.
------- Significant uncertainty about its experimental host status. In this paper, it is only mentioned that studies were ongoing but no results were presented (at that time or later).
* Gurr GM, Johnson AC, Ash GJ, Wilson BA, Ero MM, Pilotti CA, Dewhurst CF, You MS (2016) Coconut lethal yellowing diseases: a phytoplasma threat to palms of global economic and social significance. Frontiers in plant science 7, 1521. https://doi.org/10.3389/fpls.2016.01521