Abstract
In addition to novelty and relevance, interdisciplinarity seems to be an imperative predicate in the scientific works carried out in Indonesia. Unfortunately, research on the interdisciplinarity itself, particularly from the perspective of philosophy of science, either descriptive or normative, i.e., what and how interdisciplinary has been (and should be) done is still a desideratum. Through database and normative-philosophical analysis, this article shows that most of the interdisciplinary works hitherto carried out are either additive or interpretative/take-over in nature. Such works would be bad scientific practices. Good interdisciplinary works presuppose the existence of interdisciplinary material objects and their formal ones. These normative requirements, however, lead to a dilemma which should be faced by those who work interdisciplinarily.