Khoiroh J, Putra ED, Murtinasari F. Ethnomathematics in Buying and Selling Transactions of Cracker Traders at Puger Market. JELMaR [Internet]. 2025 Nov. 27 [cited 2026 Jun. 5];6(2):138-42. Available from: https://jelmar.wisnuwardhana.ac.id/index.php/jelmar/article/view/6