1. Tipnee S, Ramaraj R, Unpaprom Y (2015) Nutritional evaluation of edible freshwater green macroalga Spirogyra varians. Emerg Life Sci Res 1(2):1–7
2. Ramaraj R, Dussadee N, Whangchai N, Unpaprom Y (2016) Microalgae biomass as an alternative substrate in biogas production. IJSGE 4:13–19
3. Ramaraj R, Tsai DD, Chen PH (2013) Chlorophyll is not accurate measurement for algal biomass. Chiang Mai J Sci 40(4):547–545
4. Mejica GFC, Unpaprom Y, Khonkaen P, Ramaraj R (2020) Extraction of anthocyanin pigments from malabar spinach fruits as a potential photosensitizer for dye-sensitized solar cell. GJSE 2:5–9
5. Khammee P, Unpaprom Y, Subhasaen U, Ramaraj R (2020) Potential evaluation of yellow cotton (Cochlospermum regium) pigments for dye sensitized solar cells application. GJSE 2:16–21