Ayyanathan, N. “Ancient Trade Routes of Tamil Kingdom and the Global Black Pepper Supply Chain Network With Its Impact on Roman Trade and Economy - A Survey”. Shanlax International Journal of Economics 6, no. 2 (March 27, 2018): 177-182. Accessed February 29, 2024. https://shanlaxjournals.in/journals/index.php/economics/article/view/692.