“…Thiagarajan, Semmel and Semmel's four-D research methodology was used in this R&D study. The four-D model is comprised of the defined stage of, design, development and dissemination (Fitria & Idriyeni, 2017;Kusmawati, Iza, Hindun, & Nuh, 2019;Yanti, Hasratuddin, & Sitompul, 2018). Interviews, observations, questionnaires and tests are among the tools employed.…”