Suwanphakdee C, Simpson DA, Hodkinson TR, Chantaranothai P. A synopsis of Thai Piper (Piperaceae). Thai Forest Bull., Bot. [internet]. 2020 Aug. 31 [cited 2025 Dec. 6];48(2):145-83. available from: https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/177131