A spectrum of cutaneous manifestations of CKG with a wide variety of unusual presentations with confirmed serological and histopathological evidence was encountered.

This study aims to look at the effectiveness of problem-based modules in lectures on Sampling Techniques toward problem-solving behavior. A module can also be used by using an e-learning platform if the lecturer cannot face-to-face because the modules designed can be used independently by college students because they contain material, examples, guided exercises, independent exercises, and answer keys. The subjects of this study were 26 college students from one of the private universities in Indonesia. The study used a One-Shot Case Study design. Data collection is done through a final Problem-Solving test, open interview, video analysis. Data were analyzed using a t-test and problem-solving behavior rubric. Based on the results of the study concluded that was the use of the Sampling Technique module in lectures affected college student problem-solving behavior. This means that the problem-based sampling technique module is effectively used in studies.

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