2 articles, published in Octogon Mathematical Magazine
2 articles in Octogon Mathematical Magazine (recent issue) Here is a letter from our colleague: --- V. Christianto, F. Smarandache, Yunita Umniyati, Remark on possible binary companion of the sun: towards a symmetric cosmology model which may be called Quantum Liquid Dirac-Milne (QLDM) model, Octogon Mathematical Magazine, Sacele, Romania, Vol. 29, No. 1, 342-347, April 2021. V. Christianto, F. Smarandache, Five examples on using spreadsheet to solve engineering and mathematical problems, Octogon Mathematical Magazine, Sacele, Romania, Vol. 29, No. 1, 362-371, April 2021. I only have the hard copy of the journal
