| Dynamics of an SIRWS model with waning of immunity and varying immune boosting period R Opoku-Sarkodie, FA Bartha, M Polner, G Röst Journal of Biological Dynamics 16 (1), 596-618, 2022 | 14 | 2022 |
| Sex differences in the experience of COVID-19 post-traumatic stress symptoms by adults in South Africa NP Nzimande, M El Tantawi, RAA Zuñiga, R Opoku-Sarkodie, B Brown, ... BMC psychiatry 22 (1), 238, 2022 | 14 | 2022 |
| In-service mathematics teachers’ conception and perceptions of metacognition in their teaching experience RN Wafubwa, C Csíkos, R Opoku-Sarkodie SN Social Sciences 2 (2), 21, 2022 | 7 | 2022 |
| Optimum production scheduling for a beverage firm based in Accra SK Amponsah, JB Ofosu, R Opoku-Sarkodie Research Journal of Applied Sciences, Engineering and Technology 3 (2), 74-80, 2011 | 7 | 2011 |
| Construction and Validation of a Test for Measuring Students’ Proportional Reasoning on Rates, Ratios, & Proportions RN Wafubwa, R Opoku-Sarkodie, C Csíkos International Journal of Pedagogy, Policy and ICT in Education 8, 53-76, 2020 | 2 | 2020 |
| Bifurcation analysis of waning-boosting epidemiological models with repeat infections and varying immunity periods R Opoku-Sarkodie, FA Bartha, M Polner, G Röst Mathematics and Computers in Simulation 218, 624-643, 2024 | 1 | 2024 |
| Vector-valued function application to projectile motion R Opoku-Sarkodie, E Acheampong Asia Pacific Journal of Education, Arts and Sciences, 2015 | 1 | 2015 |
| Mathematical Model to Extrapolate the Population of Ghana: An Application of Newton‟ s Divided Difference Formula R Opoku-Sarkodie, E Acheampong, P Enu, A Bokoum, FA Gardiner, ... Asia Pacific Journal of Multidisciplinary Research, 2015 | 1 | 2015 |
| Complex bifurcation structures in SIRWS and SIRWJS models of pertussis with asymmetric partition of immunity period R Opoku Sarkodie szte, 2024 | | 2024 |
| A Simple Air Deterministic Mathematical Model for Determining Oxygen and Carbon-dioxide Concentration in a Sealed Environment E Acheampong, F Gardiner, R Opoku-Sarkodie, T Manu Research Journal of Mathematics and Statistics 6 (3), 35-41, 2014 | | 2014 |
| Mean Vector Analyses of the Voting Patterns of Ghanaians for Three Consecutive Periods: A Case Study of the Greater Accra Region R Opoku-Sarkodie, SA Gyimah, F Gardiner, T Manu Research Journal of Mathematics and Statistics 6 (3), 30-34, 2014 | | 2014 |
| Modelling the Queue at the Scan Station of Tema Port: An Application of Queuing Theory E Acheampong, R Opoku-Sarkodie | | |
