Investigating asymptotically stable solutions of the linear differential equation systems with periodic coefficients by spectral method Page: 82-85

Sequentially necessary and sufficient conditions for solutions of optimization problems with inclusion constraints Page: 86-91

Suggesting algorithms programmed in Casio fx-570vn Plus calculator for quickly solving some primary problems Page: 92-99

Analysing and evaluating the copper and zinc content in snake-head fish (Channa maculata) raised in Ngu Thuy Bac Commune, Le Thuy District, Quang Binh Province Page: 100-103

Isolating and selecting antagonistic bacteria from rhizosphere soil against Colletotrichum sp. causing anthracnose in onions Page: 104-110

Interaction between zn and scalar particles in the 3-3-1-1 model Page: 111-115

Making drinks from momordica cochinchinensis and passion fruit Page: 116-120