Pengaruh serat (fiber) pelepah batang pisang terhadap koefisien gesek aliran dalam pipa spiral = Effect of banana stem fiber suspensions of drag reduction in circular pipes

Pengaruh serat (fiber) daun nanas terhadap koefisien gesek aliran dalam pipa spiral = Effect of pineapple leaf fiber suspensions of drag reduction in circular pipes

Pengaruh larutan serat (fiber) daun pandan terhadap koefisien gesek aliran dalam pipa spiral = Effect of pandan (fiber) to drag reduction in circular pipes

Analisis lokasi injeksi microbubble terhadap pengurangan hambatan total dengan metode microbubble drag reduction (MBDR) = Analysis of micro bubble injector location to drag reduction with microbubble drag reduction method (MBDR)

Pengaruh biopolimer xanthan gum terhadap koefisien gesek aliran dalam pipa spiral diameter 25 mm = The effect of biopolymer xanthan gum towards liquid s coefficient of friction in spiral pipe with a diameter of 25 mm