1. <a href="./Journals/Article/RIEJ/10571917.pdf" target="_blank">Riej.05.02.04.list of contents</a><br>-<br><hr>2. <a href="./Journals/Article/RIEJ/10571918.pdf" target="_blank">Economic evaluation of integrated solar water heating system in different configurations a case study</a><br>A.D. De Maria, D. Marano, V. Sabatelli, G. Braccio, V. K. Sharma <br><hr>3. <a href="./Journals/Article/RIEJ/10571919.pdf" target="_blank">Emission characteristics of a naturally aspirated c i engine with biofuels and bio-fossilfuel mixtures</a><br>R. N. Singh <br><hr>4. <a href="./Journals/Article/RIEJ/10571920.pdf" target="_blank">Experimental analysis of a pcm based i.c. engine exhaust waste heat recovery system</a><br>S. P. Subramanian, V. Pandiyarajan, R. Velraj <br><hr>5. <a href="./Journals/Article/RIEJ/10571921.pdf" target="_blank">Field study of biogas digester with partitioned walls</a><br>P. Mahanta, A. Dewan, U. K. Saha, B. K. Bhatt, D. R. Das <br><hr>6. <a href="./Journals/Article/RIEJ/10571922.pdf" target="_blank">Performance study of a solar tunnel dryer for horticultural crops</a><br>P. L. Singh, S. Ganesan, Sunita Singh <br><hr>