IOP Conference Series: Earth and Environmental Science, vol: 246,1 (2019) Morphological Ossicles of Sea Cucumber Paracaudina australis from Kenjeran Waters, Surabaya, Indonesia Widianingsih W., Hartati

Ecology, Environment and Conservation, vol: 25, (2019) Initial assessment of Holothuria atra in Panjang island, Jepara, Indonesia Hartati R., Zainuri M., Ambariyanto A., Ayodya F.P.,

IOP Conference Series: Earth and Environmental Science, vol: 236,1 (2019) Diversity species and condition of seagrass ecosystem in Teluk Awur and Prawean Jepara Riniatsih I.,

IOP Conference Series: Earth and Environmental Science, vol: 246,1 (2019) The Concentration of Chlorophyll-C in the Bottom Sediment of Sea Cucumber Rearing Cage Hartati R.,