Lupita Sari, M., E. Andy Purnomo, M. Prihaswati, and Nurmawati. “Implementation of Lesson Study With Problem Solving-Based Discovery Learning Model to Improve Mathematical Literacy Skills in SPLDV Class X Material”. Proceeding Education, Science, and Technology International Conference , vol. 2, no. 1, Aug. 2024, pp. 1-15, http://103.97.100.158/index.php/edusciencetech/article/view/563.