[1] Dochy, F., Segers, M., Bossche, P. V., & Gijbels, D. (2003). Effects of PBL: A Meta-Analysis. Learning and Instruction, 13, 533-568.
http://dx.doi.org/10.1016/S0959-4752(02)00025-7
[2] Hirsch, J. E. (2005). An Index to Quantify an Individual’s Scientific Research Output. Proceedings of the National Academy of Sciences, 102, 16569-16572.
http://www.pnas.org/content/102/46/16569
http://dx.doi.org/
10.1073/pnas.0507655102
[3] Hsieh, W. H., Chiu, W. T., Lee, Y. S., & Ho, Y. S. (2004). Bibliometric Analysis of Patent Ductus Arteriosus Treatments. Scientometrics, 60, 205-215.
http://dx.doi.org/10.1023/B:SCIE.0000027793.12866.58
[4] Hmelo-Silver, C. E. (2004). Problem-Based Learning: What and How Do Students Learn? Educational Psychology Review, 16, 3, 235-265.
http://dx.doi.org/10.1023/B:EDPR.0000034022.16470.f3
[5] Hung, W. (2009). The 9-Step Problem Design Process for Problem-Based Learning: Application of the 3C3R Model. Educational Research Review, 4, 118-141.
http://dx.doi.org/10.1016/j.edurev.2008.12.001
[6] Kain, D. L. (2003). Problem-Based Learning for Teachers, Grades 6 - 12. USA: Pearson Education
[7] Lopes, R. M., Filho, M. V. S., Marsden, M., & Alves, N. G. (2011). Aprendizagem baseada em problemas: Uma experiência no ensino da química toxicológica. Química Nova, 34, 1275-1280.
http://dx.doi.org/10.1590/S0100-40422011000700029
[8] Mamede, S., Schmidt, H. G., & Normam, G. R. (2006). Innovations in Problem-Based Learning: What Can We Learn from Recent Studies. Advances in Health Sciences Education, 11, 403-422.
http://dx.doi.org/10.1007/s10459-006-9018-2
[9] Neville, A. J., & Norman, G. R. (2007). PBL in the Undergraduate MD Program at McMaster University: Three Iterations in Three Decades. Academic Medicine, 8, 370-374.
http://dx.doi.org/10.1097/ACM.0b013e318033385d
[10] Pichappan, P., & Sarasvady, S. (2002). The Other Side of the Coin: The Intricacies of Author Self-Citations. Scientometrics, 54, 285-290.
http://dx.doi.org/10.1023/A:1016070029935
[11] Rikers, R. M. J. P., & Bruim, A. B. H. (2006). Introduction to the Special Issue on Innovations in Problem-Based Learning. Advances in Health Science Education, 11, 315-319.
http://dx.doi.org/10.1007/s10459-006-9011-9
[12] Savery, J. R. (2006). Overview of Problem-Based Learning: Definitions and Distinctions. Interdisciplinary Journal of Problem-Based Learning, 1, 9-20.
http://dx.doi.org/10.7771/1541-5015.1002
[13] Wood, D. F. (2003). ABC of Learning and Teaching in Medicine: Problem Based Learning. British Medical Journal, 326, 328-330.
http://dx.doi.org/10.1136/bmj.326.7384.328
[14] Xian, H., & Madhavan, K. (2013). Building on and Honoring Forty Years of PBL Scholarship from Howard Barrows: A Scientometric, Large-Scale Data, and Visualization-Based Analysis. Interdisciplinary Journal of Problem-Based Learning, 7, 132-156.
http://dx.doi.org/10.7771/1541-5015.1325