Indraswari, S., Endiyono and Muntiyani 2024. Implementing The TSTS-Type Cooperative Model to Improve Student Activity and Critical Thinking in Service Procedures Materials for Class XI SMKN 8 Semarang. Research and Innovation in Social Science Education Journal (RISSEJ). 2, 2 (Dec. 2024), 99–101. DOI:https://doi.org/10.30595/rissej.v2i2.176.