Salazar CL. INFLUENCE OF PRODUCTIVE STRUGGLE IN MATHEMATICS TO THE 21st CENTURY LEARNERS: Received: 03rd February 2022; Revised: 23rd May 2022, 15th June 2022, 12th July 2022; Accepted: 13th July 2022. Docens [Internet]. 2022 Jul. 20 [cited 2024 Apr. 20];3:71-92. Available from: https://docensjournal.org/index.php/docens/article/view/22