PRABHUKUMAR, K. M., A. JOE, and I. BALACHANDRAN. “<em>Zingiber sabuanum</em> (Zingiberaceae): A New Species from Kerala, India”. Phytotaxa, vol. 247, no. 1, Feb. 2016, pp. 92–96, doi:10.11646/phytotaxa.247.1.7.