A pair of hydrosaurus celebensis, its also worth noting that there is an unsigned tiliqua gigas evanescens mixed there (The individual preferably stayed in that log shelter on the bottom right).
Thanks! The zoo has TWO Reptile Houses and for the most part the terrariums are a very nice size. In fact, combined with the huge outdoor Komodo Dragon, Asian Water Monitor and Saltwater Crocodile exhibits, reptiles are a strength of Ragunan Zoo. There's also multiple turtle enclosures across the zoo.