Fonseca, L. G., Murillo, G. A., Guadamúz, L., Spínola, R. M., & Valverde, R. A. (2009). Downward but stable trend in the abundance of arribada olive ridley sea turtles (Lepidochelys olivccea) at Nancite Beach, Costa Rica (1971-2007).

Fonseca, Luis G., Grettel A. Murillo, Lenín Guadamúz, Romeo M. Spínola, و Roldán A. Valverde. Downward but Stable Trend in the Abundance of Arribada Olive Ridley Sea Turtles (Lepidochelys Olivccea) At Nancite Beach, Costa Rica (1971-2007). 2009.

Fonseca, Luis G., et al. Downward but Stable Trend in the Abundance of Arribada Olive Ridley Sea Turtles (Lepidochelys Olivccea) At Nancite Beach, Costa Rica (1971-2007). 2009.