Volume 153(1,2) (2021),

 

  • Issue 1, pp. 1-42

  1. The Time at the Level of a High Speed Moving Object
    Author: John Spacey, 153(1) (2021) 1-42

    WSN 153(1) (2021) 1-42

 

  • Issue 2,

  1. Pore Water Nutrient Profile in the First and Second Transitional Season in Teluk Ciletuh, Sukabumi District, West Java
    Authors: Hilmi Miftah Fauzi Efendi, Yuniarti, Mega Laksmini Syamsudin, Yudi Nurul Ihsaan, 153(2) (2021) 43-54
    WSN 153(2) (2021) 43-54
  2. A Susceptible-Infected-Removed Epidemiological Model for COVID-19 Spreading in Indonesia
    Authors: Audi Luqmanul Hakim Achmad, Mahrudinda, Sri Purwani, 153(2) (2021) 55-64
    WSN 153(2) (2021) 55-64
  3. Analysis of Several Water Environment Parameters Affecting the Accumulation of Heavy Metal Lead in the Body of Blood Shells in the Coastal Waters of Muara Gembong Sub-District
    Authors: Achmad Rizal, Izza Mahdiana Apriliani, Rega permana, 153(2) (2021) 65-79
    WSN 153(2) (2021) 65-79
  4. New type of fuzzy ideals in BCK/BCI algebras
    Authors: V. S. Subha, P. Dhanalakshmi, 153(2) (2021) 80-92

    WSN 153(2) (2021) 80-92
  5. Dung beetles: key to healthy pasture? An overview
    Authors: Sumana Saha, Arghya Biswas, Avirup Ghosh, Dinendra Raychaudhuri, 153(2) (2021) 93-123

    WSN 153(2) (2021) 93-123
  6. Application of Interpolation and Extrapolation of Newton and Cubic Splines to Estimate and Predict the Gas Content of Hydrogen and Iodine in the Formation of Iodic Acid Reactions
    Authors: Ati Maryati, Naomi Pandiangan, Sri Purwani, 153(2) (2021) 124-141

    WSN 153(2) (2021) 124-141
  7. Seasonal Water Mass Transformation in Sulu and Surrounding Seas
    Authors: Noir P. Purba, Finri S. Damanik, 153(2) (2021) 142-156

    WSN 153(2) (2021) 142-156
  8. Efficiency and Convergence of Bisection, Secant, and Newton Raphson Methods in Estimating Implied Volatility
    Authors: Mahrudinda, Devi Munandar, Sri Purwani, 153(2) (2021) 157-168
    WSN 153(2) (2021) 157-168
  9. Fractional Integral Approximation and Caputo Derivatives with Modification of Trapezoidal Rule
    Authors: Naomi Pandiangan, Dwindi Johar, Sri Purwani, 153(2) (2021) 169-180

    WSN 153(2) (2021) 169-180
  10. The histopathological condition of hepatopancreas of the Prussian carp (Carassius gibelio (Bloch, 1782)) in the modern conditions of the Zaporizhian (Dnipro) reservoir
    Authors: V. O. Kurchenko, T. S. Sharamok, O. V. Holub, 153(2) (2021) 181-191

    WSN 153(2) (2021) 181-191
  11. Pulsed laser induced potassium oxide plasma analyzed by optical emission spectrum technique
    Author: Madyan A. Khalaf, 153(2) (2021) 192-204

    WSN 153(2) (2021) 192-204