Grajeda–Estrada, R., Rustrián–López, J. P., Serrano, M. J., Villalobos–Soberanis, A., Maldonado, M. L., Álvarez–Ruano, M. R., & Dix, M. A. (2020). The elusive Sobralia amabilis (Orchidacae): A range extension of its distribution to Alta Verapaz, Guatemala, with notes on its habitat. Universidad de Costa Rica.

Grajeda–Estrada, Rafael, Juan Pablo Rustrián–López, Marcelo José Serrano, Andrés Villalobos–Soberanis, Mayra L. Maldonado, María Renée Álvarez–Ruano, and Margaret A. Dix. The Elusive Sobralia Amabilis (Orchidacae): A Range Extension of Its Distribution to Alta Verapaz, Guatemala, With Notes On Its Habitat. Universidad de Costa Rica, 2020.

Grajeda–Estrada, Rafael, et al. The Elusive Sobralia Amabilis (Orchidacae): A Range Extension of Its Distribution to Alta Verapaz, Guatemala, With Notes On Its Habitat. Universidad de Costa Rica, 2020.