Ukpebor EE, Sadiku YT, Ahonkhai SI. Indoor NO Sampling in a Large University Campus in Benin City, Southern Nigeria, Using Palmes Diffusion Tubes. Pakistan Journal of Scientific & Industrial Research [Internet]. 2005 Apr. 25 [cited 2025 Jun. 8];48(2):103-7. Available from: http://biostaging.pjsir.org/index.php/biological-sciences/article/view/1350